Hydrogen is easily the most abundant element in the universe. It is found in the sun and most of the stars, and the planet Jupiter is composed mostly of hydrogen. On Earth, hydrogen is found in the greatest quantities as water.
Ling developed the system of massage and rhythmic movement called the âSweden movement treatment,â also referred to as âmedical gymnasticsâ or the âLing system.â8 Ling suffered from chronic health problems, including rheumatism. He discovered that his daily regimen of exercise and manual therapy had a beneficial effect on his health.
In the late eighteenth- and early nineteenth-century Germany, two pioneer physical educators â Johann Friedrich GutsMuths (1759â1839) and Friedrich Ludwig Jahn (1778â1852) â created exercises for boys and young men on apparatus they had designed that ultimately led to what is considered modern gymnastics.