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human perfect posture improve best method


As the first of many blog posts to come I decided that I would tell my story of the building site crane. It's an overly simplified analogy comparing an immensely strong machine that we see active on construction sites all over the developing world to our muscular-skeletal system of the human body. I bring this story into conversation early on with new clients when helping them into understanding the process of building real applicable strength and stability into their bodies, and why a precise, controlled and patient work(out) ethic necessary in order to achieve this.Mechanics is everywhere. It is so common to the point that the majority of us don't even pay attention to mechanics at work. The obvious examples that spring to mind might be the cars we drive, or appliances in our houses such as washing machines or heating units. But how often do we appreciate the reason why our buildings don't fall down or how the brackets holding our TV to the wall are so strong. When was the last time you considered how electricity cables don't pull down pylons or how bridges span distant expanses without collapsing? This is before we even look into the natural environment (where incidentally many man made structures have been designed based on support systems inspired by nature).

SADS symptoms winter view

How to beat 'SADS' and have the most productive winter ever​

Seasonal Affective Disorder (SAD) is a lot more common than people think. In fact, in the UK alone it’s been reported that 29% of the population have symptoms of SAD with women being four times more likely than men to experience symptoms. Even in Tel Aviv, with its relatively warm winters, the seasonal changes can still have an effect. So what is SAD? How can you tell if you might be affected by SAD? And what’s the best way to beat SAD? Here are some of the most effective ways you can tackle SAD and have the best winter yet. What is Seasonal Effective Disorder (SAD)? SAD is a reoccurring major depression that follows a seasonal pattern. It generally affects people in the late fall to winter with symptoms dissipating in the spring and summer. While the cause of SAD isn’t completely known, there is strong evidence suggesting it has to do with the limited or change in availability of sunlight during fall and winter months which can then change or alter a person’s internal biological clock as well as alter hormones.

ice bath frozen hot body man athlete

The surprising health benefits of exposure to extreme temperatures​

It may be that you like to indulge in the post workout steam room cycled with a jump into a cold swimming pool. Perhaps you’ve been injured and your therapist has suggested ice baths or heat pads. You may have even been training for an event and wondered about how training at extreme temperatures may improve your athletic performance when it comes to race day. Beyond this, whether you live in a hot or cold climate (or indeed somewhere that experiences both), we all remember the times when our Mother’s would tell us to put on another sweater if you’re cold, “or there’s nothing wrong with suffering a bit – It’s good for you!”. There may actually be a point to all this. Here’s what science has to say about the human body and it’s tolerance and reactions to different temperature environments. What air temperature is safe or (dangerous) for humans?The human body maintains a constant temperature of 37C, and this can fluctuate throughout the day within the range of +/- 1C. Internal and external factors contribute to any fluctuations, for example physical activity, emotional state, presence of an illness or of course the environmental temperature. Under normal conditions our bodies maintain our internal temperature by the use of subconscious response mechanisms, the most obvious of which are sweating and shivering.  As for the external temperature range that humans can tolerate – we don’t have a straight answer. You may have seen on the weather forecast that they often refer to expected ‘real feel’ conditions. This is because the temperature that we feel (and can tolerate) also depends on additional parameters such as humidity and wind. Our ideal temperature while naked, is around 28C with a relative humidity of 40-50%.  It has been reported that in extremely dry conditions (0% relative humidity), and with an adequate supply of cold water, that we can tolerate air temperatures of up to 120C for short periods (exact times are unknown, but we’re talking in the 10’s of minutes and not hours). In comparison, with a relative humidity of 80-100% (which can be common in tropical climes), we would struggle to tolerate long exposure of temperatures above 55C.  The same applies to exposure to cold conditions. Below 28C we would likely feel the need to wear light clothes. Much below 20C slightly thicker clothing would be required and below 12C we’re already in the range that without winter attire we would be at risk of hyperthermia. In addition to the effects of humidity, (which apply to both hot and cold temperatures), we also need to take into account further complications such as frost bite. Our range of tolerance to cold is much smaller than that with exposure to heat. Again, exact data is hard to find, but there have been instances of temperatures of -20C being tolerated whilst physically active, but for most, the lower limit of exposure to cold whilst naked would be around 13C.​

caveman living in modern times


Our urban lifestyles and technical environment may seem so distant from the caveman era of our ancestors, but what if they had it right? Whilst tribes may not have had the education systems that we have today, nature and evolution played its part in building life saving habits and instinctually healthy behaviour. Here’s our top tips for living cave-style within our modern world.​

barefoot in forest trees feet

Why YOU need to train in your BARE FEET

Minimalist and barefoot training is one of the few things the fitness industry has done right, though in practice it is something that many get wrong - read about out all you need to know here ....

Isractive Personal Trainer health check


Keeping healthy and in shape doesn't (and shouldn't) have to be about killing yourself mentally or physically. Here is some genuine sound advice right from the heart of Isractive - our top ten for living a healthy life and moving well... 1. Don’t get stuck!Allocate 10 minutes each day to run through a basic routine of full body mobility movements/stretches. Ensure that through the years you don’t lose your range of motion in each joints and you’ll enjoy joint health and longevity of movement. Related:  This One Activity Should Be Your Biggest Daily Habit  2. Walk!Who said exercise has to be intense all the time? Spend as much time on your feet each day as you do sitting. Walk around the office, walk your commute, and even a bit of housework is enough to balance out your sedentary time. 3. Want a smoking hot body?No problem, but let it be as a healthy bi-product of an efficient and strong body. Fix all the deficiencies in your movements habits, eat raw and green, and you’ll be performing at your best for pushing your limits in training. The lean machine look will pop out sooner than you’re expecting!



How caveman (or woman) are you? Let us know in the comments below what your favourite and healthy survival tactics are!

Eat fresh and raw – greens, nuts, fruits

Lets get the obvious one out of the way first! Cavemen didn’t suffer from heart disease and diabetes was none existent. Obesity? Yeah right! There's much debate about exactly what the caveman diet constitutes. Even the Paleo diet books can't agree on the nuances of the Palaeolithic Lifestyle, yet the basis is clear. Eat raw, eat seasonal and eat fresh. Plenty of protein, plenty of healthy fats and plenty of greens. There is no Caveman Food Aisle at the supermarket but when you’re looking for something sweet, choose fruit in place of candy. 

nuts fats fruits veg tasty healthy

Sleep cycle in time with the sun

Electricity is wonderful, screens are entertaining and informative. Artificial light however has hugely damaging effects on our sleep (and the vast knock on effects to our general health). Try and spend a day away from your screens each week, and don’t work at your computer late into the night. Most importantly, plan your social and work life around that of the daylight hours. The caveman life was dictated by the rise and fall of the sun. So, at dawn get up and move, at dusk settle down and rest and you’ll reap all of the benefits to be had.

sleep cycle healthy wake with the sun

Be more active (sometimes on an empty stomach)

Did you know that 3 meals a day is a modern concept? Perhaps intermittent fasting would do you good. Most importantly move more! Move slow but most of the time, and sprint occasionally. Humans are good at this so don’t lose your ability to escape danger. Additionally, Don’t sit! Lie, squat, sprawl, kneel, crouch, spread, stretch and lean. Do any and all but just get off the damn chair! There were no Caveman fitness training programs (that we know of) but we do know that they kept moving.

working from floor and standing on with computer

Be barefoot!

Contact with the ground is essential for so many elements of our health. Most importantly, modern day shoes favour fashion over function, crush our toes, limit our communication with our surroundings and prevent our hips from staying strong (leading to back pain and knee injuries). The caveman hiking shoe, running shoe and water shoe were all the same. Our tip - Be barefoot whenever you can and when you can’t opt for spacious, flexible neutral shoes. 

foot health no shoes

Donate blood often 

Cavemen weren’t giving blood voluntarily but they were regularly grazed, scratched and cut whilst out hunting and foraging. Avoiding masochism, donating blood is  closest you might get to frequent bleeding. Donating blood can reduce the risk of heart attacks, lower bad cholesterol and help prevent cardiovascular diseases. Strong links have been also been observed between blood donation and reduction in cancer cases.

bleeding arm donate blood healthy

Avoid poisonous things

We have a genetic disposition to a sweet tooth. Unsurprisingly sweet-tasting plants are almost universally safe to eat, whereas bitterness often indicates toxicity. The same goes for other poisonous substances that are not so tasty such as tobacco, alcohol and other drugs. Avoid them, and you’ll survive for longer!

avoid poison

Nurture close relationships

In our modern society it is important that we each seek out and satisfy our innate need to be valued as members of a tribe. Thankfully this tribal dynamic can be derived from a variety of sources such as family, sports teams or social groups. 

sociable group mental health


caveman living in modern times

This is a mockup. Publish to view how it will appear live.

Our urban lifestyles and technical environment may seem so distant from the caveman era of our ancestors, but what if they had it right? Whilst tribes may not have had the education systems that we have today, nature and evolution played its part in building life saving habits and instinctually healthy behaviour. Here’s our top tips for living cave-style within our modern world.​

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Isractive is based in the 'Old North" of Tel Aviv. Private training sessions usually take place at Kolnoa Peer Fitness Club, occasionally in private workout facilities, and when appropriate out in the field (park). Remote, "virtual" or video sessions are also available.

For accurate group session and run club locations refer to the published timetable and booking app. 

Phone:  +972 (0) 54 295 1511

eMail:     info@isractive.net