This no-equipment move looks easy, but it can quickly expose weaknesses in your legs, posture, and core stability—making it a ...

Artur is a copywriter and SEO specialist, as well as a small business owner. In his free time, he loves to play computer games and is glad that he was able to connect his professional career with his ...

For FITBOOK, yoga instructor Nina Ponath conducted a special self-test: wall sit every day for 14 days. She reveals how much willpower she needed to persevere and what the daily wall sit did to her ...