Exercise prevents breast cancer

Intense physical activity that cause breathlessness creates a chemical release in the body. This releases compounds called catecholamines and epinephrine suppress the growth of tumour cells.

 Exercise training and epinephrine did not completely prevent tumor formation, but induced reduction.
Exercise training can not replace anti-cancer therapy, but could be an effective supportive strategy and improves cancer treatment.

Researchers used experimental mice implanted with human breast cancer tumors as well as tumor cells in test tubes to investigate how serum samples from healthy women and breast cancer patients before and after exercise affect the development of the breast tumor cells, and the mechanism involved.

They discovered that serum samples taken after exercise reduced the ability of tumor cells to grow in test tubes or in mice. Less than half of mice with tumors steeped in post-exercise serum developed tumors, compared with 90 percent of mice with tumors not exposed to post-exercise serum.

The researchers traced the anti-tumor activity to a rise in epinephrine and norepinephrine that occurs with moderately intense exercise. Studies have shown that regular fitness can reduce risk of breast cancer and reoccurrence in those who already have it.
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Third-hand smoke exposure affects liver and kidney

Third-hand smoke exposure can damage brain, liver, increase the risk of neurodegenerative diseases, and destroy metabolism. The research team analyzed how people were affected by inhaling smoke from smoker's clothes, hair, home, or car.

Being a third-hand smoker for one month can cause type 2 diabetes, hyperactivity, liver and lung damage, and wound-healing complications.
Exposure for two months resulted in further molecular damage, and at four to six months caused more damage, long-term exposure can leads to insulin resistance.

Researchers discovered that stress hormones, such as epinephrine, increased in one month of exposure.
Additional stress hormones are seen at two months, four months, and six months, eventually leading to immune fatigue.

Contaminants can be absorbed through the skin and through breathing. Exposure to tobacco smoke deposited on surfaces in homes and dust is a new form of toxicity. Noxious chemicals in tobacco smoke once deposited change in chemistry to become even more toxic and carcinogenic.
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