Health Impact of Plastic

Plastic has a backbone of carbon and an attached hydrogen, with  chemicals forming a non-covalent bond with it. E.g. for PFAS (Per- and Polyfluoroalkyl Substances), the fluorine is attracted to the carbon molecule, and just sits on it.
Plastic has 16,000 chemicals that can be attached to it. The chemicals are known to be CARCINOGENS (cause cancer), NEUROTOXICANTS (cause brain diseases) and 1,000 of them are labeled as ENDOCRINE DISRUPTORS.
PFAS Image Credit: EPA

The Endocrine System

The endocrine system produces hormones. Other than the sex hormones like estrogen and testosterone, we have a number of other glands that produce hormones to regulate everything in our body
1. The pituituary gland at the base of your brain stimulates other glands to produce hormones.
– It stimulates the adrenal glands to produce cortisol, the stress hormone. 
– It stimulates sperm production in male, and estrogen and egg development in female.
– It produces the growth hormone, which stimulates growth in children, and maintains muscles, bones, and fat distribution in adults.
– It stimulates ovulation in the ovaries, and testosterone production in the testicles.
– It  stimulates breast milk production after giving birth.
– It produces TSH to stimulate your thyroid gland.
– It makes antidiuretic hormones to regulate the water balance and sodium levels in your body.
– It stores and releases oxytocin to signal the uterus to contract during childbirth and to cause breastmilk to flow.
2. The thyroid gland in your neck produces Thyroxine (T4) and Triiodothyronine (T3), which regulates your metabolism and weight, body temperature, energy level, and skin, hair and nail growth.
3. The parathyroid glands are 4 glands behind the thyroid gland that produces calcitonin, which regulates your blood calcium level to protect your bone health.
4. The pineal gland in the center of the brain produces melatonin to regulate your sleep-wake cycle.
5. The thymus between your lungs and behind your breastbone produces special white blood cells called T-cells to fight infection and disease.
6. The pancreas produces insulin and glucagon to control your blood sugar level.
7. The kidneys produce hormones that regulate your red blood cell production, blood pressure, and the absorption of calcium.