It's almost everywhere! But is that bad?

We found out what happens when there is a vitamin deficiency in the body and without which microelement vitamin A does not work.

A nutritionist discusses the nutritional properties of the main plant-based sources of protein and whether they are truly poorly digestible.

We explain why the body receives little energy and where it is spent.

We strengthen, build and stretch the back muscles.

And don't let it happen again.

Expert advice on how to train at home and at the gym to strengthen and build your triceps.

We've compiled the most popular and effective pull-up techniques. Spoiler: we've also figured out what to do if you don't have a pull-up bar.

Our list includes shoulder exercises for every taste—of varying difficulty levels, with weights and bodyweight exercises.

We figured out how much water you really need to drink with a gastroenterologist.

8 Steps to Becoming a Fitness Trainer

In reality, this "norm" was created by marketing, not science. But science does know how many steps a day will help maintain health.