In research institutions, biomedical engineers supervise laboratories and equipment, and participate in or direct research activities in collaboration with other researchers with such backgrounds as medicine, physiology, and nursing.n research institutions, biomedical engineers supervise laboratories and equipment, and participate in or direct research activities in collaboration with other researchers with such backgrounds as medicine, physiology, and nursing.
Melatonin is released in the dark, during sleep. The pineal gland has been implicated in a number of disorders including cancer, sexual dysfunction, hypertension, epilepsy, Pagetâs diseaseâ¦ The pineal gland calcifies with age and melatonin production correspondingly decreases.
The adrenal glands secrete several important hormones in the body including cortisol, DHEA, testosterone, norepinephrine and epinephrine (adrenaline). Cortisol, DHEA and adrenaline are hormones that rise when the body is under acute stress.