Can we be fit without steroids, hormones even without going to the gym?
It seems that the answer is: Yes, we can!
What is the secret ?
Rhythmical movements without using equipment (just body weight) which are intended to increase body strength and improve the cardiovascular system, also known as Calisthenics.
The benefits of Calisthenics range from improved cardiovascular health, metabolic health, bone strenght to mental health and better social life.
These 60 years old grandpas are the living proof: