Blue Zones – Sam Kelly Fitness

March 13, 2023March 13, 2023

Community and health

The power of community

In a previous post looking at the habits and lifestyle of people living in blue zones one of the aspects looked at was the importance of community, not only our own family but need for strong friendships. This isn’t a surprise, I think we all know the importance of having people in our lives who have our backs. It may however suprise you to learn that strong social networks appear to reduce our risk of heart disease, some cancers, make it more likely we will survive a health crisis and quite simply increase our chance of living a long healthy life.

But in the modern world it isn’t always that simple, working patterns, less interaction between neighbours, moving far from home all play into people becoming more isolated. Then throw in social anxiety, a divorce or caring responsibilities and it can seem impossible to expand our social circles never mind be part of a community.

This all makes the advise of having strong community links for the benefit of our health seem like empty words so what do we do?

Honestly it’s not an easy situation but I have had to rebuild my circle from scratch more than once, in my early 20s after a big relationship break up, in my 30s when I moved to a different town and then in recent years when after a long period of caring for my daughter I found I had lost many friends during her illness. Here’s a list of ideas based on what I found worked for me:-

Be open to opportunities for new friendships, if you really hit it off with someone ask them out to coffee, the worst that will happen is they politely say no.
Join stuff, all the stuff! Anything that takes your interest, book clubs, Spanish classes, true crime groups, gyms. Really anything that you will enjoy that also gives you a chance to meet people. The enjoying the actual activity is an important aspect as it might be that there is no one there that you gel with but it gives you an activity to look forward during the week regardless. That in itself is confidence building
Be open to trying entirely new experiences, maybe you actually are a budding surfer or ariel yogi.
Apps these days are amazing, there are meet new friends apps such as peanut and one of my favourites MeetUp which has events and get togethers close by listed. Although I have yet to find something in my town via MeetUp I have joined a couple of really fun groups in the nearest city.
Realise that you are not going to be everyone’s cup of tea and that is actually ok, there may be places where you just don’t fit. If that is the case just move on, it’s impossible to make yourself fit somewhere you don’t and wastes time you could be spending on other more fruitful situations. A rule of thumb as to whether you don’t fit somewhere is if you stop going does anyone from that social situation or group stay in touch or reach out? If the answer is no, especially if you’ve been part of that group for sometime chances are they aren’t your people or your friends. If people from that group actively shun you once you are no longer part of their network they absolutely were never friends in the first place. Harsh, but better to figure it out sooner rather than later.
To a lesser degree the same applies to individuals, if you only ever reach out and it is never reciprocated as far as suggesting plans etc question if that person is actually there for you. There are times when people are just overwhelmed with work or family responsibilities which is understandable but there are also people who will just take advantage. Before my daughter developed cancer I had some what I thought were really close friends, I was always in the supportive role of their lives and dramas. The second my daughter became ill and I was the one needing support two of my oldest friends vanished and I didn’t hear from them again. I am now much more aware of the signs of people who will use me to their benefit. Building your community means finding people who will support you, not just people who want your support.
It is even more likely there will be places you don’t fit if like me you are neurodiverse. Don’t worry though your weird soul friends are out there and you will thrive all the more when you find them!
Re-connect with old friends, if you stopped seeing each other due to circumstance rather than a break in the friendship there is a good chance that whatever was there before still is. It can be tricky to reach out out of the blue but most of the time we are actually thrilled to hear from someone we share history with.
Once you start to build your little community of friends be patient, each new friendship is like a seedling. Some will grow others may not. Focus on the friendships that are growing and nurture them with your time.
Make plans. This is an obvious one, but it can be very easy to put off seeing people over and over again. Especially if busy with work and family. I don’t think I’ve ever made time for a friend and regretted it, even when I’m exhausted.
Most of all enjoy the process, it can be daunting as an adult to make new friends, but it can also be a huge amount of fun if you let it!

Good luck and here’s to all the beautiful people in our lives who bring joy to our days, wine to our glasses and laughter to our bellies and nourishment to our souls! I am very lucky to have a batch of people in my corner now who I know have my back and who I hope realise I have theirs.

February 17, 2023February 28, 2023

What are the benefits and risks of fasting?

What are the benefits and risks associated with fasting? Fasting over the past few years has become pretty mainstream with various iterations featured in books that grace the shelves of high street shops. Popular versions include 16/8 where you don’t eat for 16 hours and limit your intake to an 8 hour window, 18/6 same but longer restriction period, 5/2 this is 5 days of normal eating and 2 days of 5 to 800 calories. The eat fast eat methods all come under the umbrella of intermittent fasting. Then there are the longer or prolonged fasts and fasting mimicking plans such as Prolon which is a scientifically designed very low calorie plan.

Claims made by proponents of fasting include:-

Improved fat burning

Improved weight loss

Reduced risk of cancer

Optimized hormone levels

Improved cholesterol levels

Improved body composition

Better blood sugar regulation

Reduced risk of heart diseases

Increased activation of stem cells[1]

All sounds pretty amazing doesn’t it? Especially if it’s just a case of skipping breakfast! Except the science is not yet behind the idea of intermittent fasting, in fact a year long study disputes the majority of the claimed metabolic benefits[2][3]

That is not to say there are no benefits and that if you personally find it helps with weight loss, calorie maintenance or feel it suits your lifestyle that you should give it up. The science is also not entirely conclusively against intermittent fasting, for example a study of breast cancer survivors found that those who had more than 13 hours between the last time they ate in the evening and the first time they ate in the morning was associated with a 36% reduction in the recurrence of breast cancer.[4] It would seem that our bodies being constantly bathed in calories is not long term good for us. It needs periods of rest and recovery.

However, it looks unlikely that some of the really interesting aspects such as autophagy take place over such short periods of restriction. Autophagy translates as self eating, in this process when the body is not taking in enough calories in particular it seems proteins it will scavenge it’s own system in order to find the necessary proteins. In particular damaged cellular matter is broken down first, this makes sense, if we face financial hardship we will mend or repurpose damaged items while leaving new perfect goods alone.

It is the process of autophagy where the real magic of fasting lies, through this process we can reduce inflammation, reduce our risk of tumors, delay the aging process and increase the production of tumor killing cells.[5]

When fasting is combined with chemotherapy it seems according to some studies reduce the risk of side effects by sending the healthy cells into a protective state while leaving the fast growing mutation cells open to attack.[6]

It’s all pretty exciting stuff really and a great deal of research is currently going on looking at various medical applications of both fasting and fasting mimicking diet. The fasting mimicking diet is the brain child of Professor Valter Longo and allows for a small almost protein free intake of calories over the fasting period.[7]

The caveat in all this is that it takes at least 2 to 4 days for this to take place and not the few hours of restriction we were all hoping for.[8] The ideal period of fasting is around 5 days.

It should be noted that autophagy can also be triggered by long periods of calorie restriction which may be a more suitable path for many, in order to trigger autophagy a restriction of 40% of normal intake is necessary, so for example if your intake is 2000 a day reducing it to 1600 for a few weeks will result in a degree of autophagy[9]. I will likely write a separate post on this another day.

Such longer term periods appeal to me less purely because at the moment training is very important to me which means I eat at or slightly above maintenance calories which supports my energy and post training recovery. Fast and hard is my preferred method (pun intended) to this and many aspects of life.

I have used Longo’s fasting mimicking plan a few times now, 4 maybe 5 times I can’t quite remember. The last time was nearly 9 months ago! I had planned on before Christmas but family responsibilities, social engagements etc meant I kept having to bump it forward. I set a specific date for Feb, which is next week, put it in the calendar and turned everything that tried to crop up down other than a couple of non-negotiable appointments for my daughter!

I prefer during fasting weeks to turn life down, I did during my first one attempt to train and live as normal and by day 4 I felt awful. I mean really really awful. After that experience the next attempts were undertaken a little more sensibly. I take the week off work and focus on nurturing myself and allowing for rest while I push my cells into a repair cycle. I think it’s reasonable to allow myself time to do this and as it’s 2 to 3 weeks in a year maximum stepping back a little is no bad thing. It’s also one of the many benefits of being self employed! Plus if it gives me chance of

Of course it is necessary to mention that fasting and fasting mimicking plans are not without risk, during the 5 days it is possible to experience fatigue, dizziness, feeling cold and of course hunger. As I mentioned earlier when I pushed too hard I did feel genuinely dreadful and learned my lesson. The biggest risk however is something called re-feeding syndrome which can be deadly

“Refeeding syndrome can be defined as the potentially fatal shifts in fluids and electrolytes that may occur in malnourished patients receiving artificial refeeding (whether enterally or parenterally). These shifts result from hormonal and metabolic changes and may cause serious clinical complications.”[10] It is rare but necessitates that the two days after fasting involve a gentle re-introduction of food rather than rushing to McDonalds for a big mac. It is less likely with the fasting mimicking plan due to the very small caloric intake keeping the digestive mechanisms running. However they still recommend a slow return to nutrition.

There are a number of scientists working in the realm of aging and longevity all with different ideas and methods, however one area in which they all seem to agree is that short periods of fasting (5 days for full benefits) are one of the most reliable methods of reducing disease risk and promoting a longer healthy life. Nothing in life is guaranteed, but if a short period of discomfort can shift the odds in my favour I’m all for it! See you on the other side!

[1] https://www.doctorkiltz.com/16-8-intermittent-fasting/

[2] https://www.nytimes.com/2022/04/20/health/time-restricted-diets.html

[3] https://www.nature.com/articles/s41574-022-00638-x

[4] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4982776/

[5] https://www.cell.com/cell-metabolism/fulltext/S1550-4131(15)00224-7

[6] https://www.cell.com/cancer-cell/fulltext/S1535-6108(16)30265-3

[7] https://www.valterlongo.com/fasting-mimicking-program-and-longevity/

[8] https://www.medicinenet.com/how_long_do_you_need_to_fast_for_autophagy/article.htm

[9]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6950580/#:~:text=Calorie%20restriction%20(CR)%20and%20CR,initiation%20of%20the%20autophagy%20process.

[10]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2440847/#:~:text=Refeeding%20syndrome%20can%20be%20defined,may%20cause%20serious%20clinical%20complications.

January 19, 2023February 4, 2023

How to live to 100 according to Blue Zones

What are blue zones and why do they matter for healthy aging?

What better way to know what works in sustaining a long healthy life than learning from those who have already reached over 100? Rather than having a hypothesis and testing it with regard to longevity these are people who have already successfully achieved the result we all want, a long healthy disease free old age. It seems that we have a good chance of doing so too should we wish, a Danish twin study established that only 20% of aging is genetic the other 80 in how we live[1]

But how should we live? That brings us to what are now known as The Blue Zones, in the early 2000s journalist Dan Buetter[2] set out with the help of the National Geographic to discover the areas of the world where people lived the longest and what secrets their lifestyle would reveal. He planned to find not only areas where there was a large number of centenarians, but the population had less of the diseases that have become common in the Western world; diabetes, heart disease, obesity etc.

In his research he identified the following 5 areas-

Ikaria, Greece

On this Mediterranean Island they boast some of the lowest global rates of middle age death and dementia believed in large to be due their traditional Mediterranean diet free from processed foods and rich in vegetables, fats with some meat and dairy.

Okinawa, Japan

Here some of the world’s most long-lived women enjoy an excellent later life, they have a natural diet containing plenty of Okinawan sweet potatoes, soya beans, mugwort and turmeric.

Ogliastra region, Sardinia

A mountainous Italian region where the highest proportion of oldest men in the world live, they eat a predominantly plant based diet that is low in protein and is according to some research linked to lower levels of mortality in under 65s along with lower rates of cancer and diabetes. Professor Valter Longo[3] an eminent researcher in the field of longevity recommends a low protein diet as a result. He is involved in a number of research projects examining the benefits of a low protein diet and fasting.

Loma Linda, California

The largest number of Seventh-day Adventists can be found here, they live around 10 years longer than the average American. Their vegetarian diet consists of grains, fruits, nuts and vegetables. They also eschew spices, alcohol, and caffeine.

Nicoya Peninsula, Costa Rica

The second largest number of centenarian men can be found with the locals subsisting on a diet of vegetables, beans, rice, some meats and coffee[4].

It is easy to spot the commonalities with regard to diet, the diet in each area is unprocessed and based around whole foods. The foods themselves vary from vegetarian to meat eating some with dairy some without, the Seventh-day Adventists are teetotal, the Mediterranean areas enjoy a little wine. However, they all have a focus on home cooking, quality ingredients with high levels of vegetables and fruits.

Perhaps then it does not matter what our dietary preference is be it Vegetarian, Vegan, Paleo or Omnivore. The key may be as simple and common sense as eating a largely unprocessed diet of whole foods and ensuring plentiful vegetables and fruit throughout the day. The finer points being up to each of us to decide.

A great deal of this may not be news to you, I think we are all aware of the need to eat a whole food unprocessed diet and particularly of the benefits of fruit and veg. In fact I would say the dietary aspect of the blue zones has been the most highlighted in the media and has been the subject of the greatest wealth of further research. In particular the Mediterranean diet.

However we can’t simply pick one aspect of these areas in isolation from the rest of the life style, what about the rest of the day to day life of those who enjoy health and extreme longevity.

All of the blue zones had other characteristics that are of equal important to dietary habits.[5]

1. Movement, in each area people are active right the way through their lives, in the mountainous areas of Sardinia walking miles in hilly terrain is normal, the Seventh-day Adventists engage in deliberate daily activity. Compared to the Western world’s standards very high levels of activity are normal. Walking to commute for example remains part of life into peoples 90s as does engaging in physical jobs and hobbies[6]

“the average time spent sitting per day for Ikarian residents≥90 years of age is 90 min per day. Similar results with a different form of measurement were reported for the Sardinian participants≥90 years of age regarding productive rest. The total daily resting time was measured by the participant’s duration of night’s sleep and time spent in supine in the waking day, which resulted in only 8.5 hours for men and 7.4 hours of total daily rest on average out of a 24-hour period”[7]

This is a stark contrast to how aging is both seen and treated in the UK and America, activities tend to be wound down with age and older people are often encouraged to take it easy rather than get out and about.

2. A sense of purpose, having a reason to get up in the morning, a why is linked to longevity and common within these communities.

3. A sense of belonging and community, again all of these regions have strong senses of community and involve elders actively within the community. Social connections are connected to not only greater quality of life but longevity.

“by the time half of a hypothetical sample of 100 people has died, there will be five more people alive with stronger social relationships than people with weaker social relationships.”[8]

Friendships and being included within daily life quite literally can save your life. Again contrast this with the way elders are treated within the UK and the US, often isolated, lonely and far away from family members. Loneliness and isolation are associated with heart disease, stroke, Alzheimer’s and other serious health issues. In fact, the risk may rival smoking.[9]

It is also worth being aware that intergenerational friendships (a part of life in blue zones) benefit not only the older individual but also the younger person. Both gain different perspectives and are able to share valuable insights, in cases where older individuals mentor young adults it was found

“55% less likely than their peers to skip a day of school

78% more likely to volunteer regularly

130% more likely to hold leadership positions”[10]

Community is good for all of us it seems.

4. Healthy friends, it doesn’t come as a big surprise that the people we spend time with influence our behaviours, in other words if you want to live a long healthy life spend time with people who encourage healthy behaviours.

In short, eat well, eat plenty of plants, move a heck of a lot more than you probably do and spend quality time with good people of all ages who encourage you to do all of the above! I realised a few months ago that although I exercised regualrly I also sat a lot during the rest of the day, due to this I set myself a 15,000 steps a day challenge which I will post about later. I have also joined a few new social networks as my social circle shrank dramatically when my daughter was unwell for a few years. We maybe can’t follow all of the recommendations but perhaps by getting as close as we can to the lifesyle ot the blue zones we will live just that little bit longer and perhaps more importantly those years will be in good health. Let me know what you plan to do help add a few years to your life and life to your year!

[1] [1] https://pubmed.ncbi.nlm.nih.gov/8786073/

[2] https://www.nationalgeographic.com/books/article/5-blue-zones-where-the-worlds-healthiest-people-live

[3] https://www.valterlongo.com/

[4] https://www.forbes.com/sites/cathyhackl/2020/08/12/what-costa-ricas-blue-zone-can-teach-us-about-the-future-of-wellbeing–longevity/?sh=564ec7ce52d8

[5] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6125071/

[6] https://link.springer.com/article/10.1007/s12062-022-09396-0

[7] https://link.springer.com/article/10.1007/s12062-022-09396-0

[8] https://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1000316

[9] https://www.cdc.gov/aging/publications/features/lonely-older-adults.html

[10] https://secondwindmovement.com/intergenerational-relationships/