Adrenal: adrenaline makes the heart beat faster and lungs breathe more efficiently causing the blood vessels to send more blood to the brain, making the brain more alert
Thyroid: triiodothyronine and thyroxine is secreted here. It plays an important role in the regulation of weight, energy levels, internal temperature, skin, hair, nail growth, metabolism
Pituitary: FSH which stimulates sperm production and stimulates the ovaries to produce oestrogen. LH stimulates ovulation
Hypothalamus: dopamine and oxytocin and many more are produced here. It facilitates childbirth and the release of a mothers breast Milk
Pineal: melatonin which helps the body control day and night sleep patterns and is the body’s internal clock.