The penis. did u want this answer for any work or did you want someone to search it up lol
While you didn't provide any following sources, healthy sources of energy for humans are usually considered to be different types of fruits and vegetables, lean meats, wholewheat grains, nuts, seeds, and healthy oils. All these constitute a healthy human diet and are a healthy source of energy.
Answer:
True, it will stretch your neck, spine and chest. Also if you look up "bridge pose" and try it yourself you can actually figure out what it stretches if you wanted :)
