Their research was about the nature of human sexual response and the diagnosis and treatment of sexual disorders and dysfunctions. (Research started in 1957and ended in the 1990’s)
D. physics
Physics is a field of study contributes ideas and concepts to biomechanics.
Most likely they will gain weight fairly quick, it depends on how many calories they burn in a day though.
Okay, here's what might help:
1. Avoid crises.
2. Agree that change is a part of living.
3. Move toward your goals.
4. Keep everything postive.