Progesterone and Oestrogen are produced by the ovaries and the amount of their production varies naturally, after the menstrual cycle. The birth-control replaces these naturally produced hormones with the synthetic versions.

Strassmann states that there is a direct connection between the contraceptive pills and the risk of breast cancer. She extracted data from 12 various studies which measure the amount of oestrogen and progesterone over the menstrual cycle in women who do not take these pills. The study is a continuation of her previous research on menstruation and reproductive biology among the Dogon people of Mali in Western Africa.

According to the Cancer research in the UK, around 1% of breast cancers in women are caused due to the oral contraceptives. Though it protects you against various other cancers such as ovarian or any health issue related to the womb, there is still a presence of increased breast cancer risk.

Manipulating mitochondrial networks inside cells may increase lifespan and promote health, according to a new study.

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ProPublica has been documenting the many ways health care dollars are being wasted. We’ve shown how hospitals throw out brand new supplies, nursing homes flush tons of unexpired medication and drug companies concoct costly combinations of cheap medication. Recently we described how arbitrary drug expiration dates cause us to toss safe and potent medicine.

Often, large swaths of the medical and pharmaceutical communities know about this waste — even about solutions to it — but do nothing. Those who end up paying the bill, in one way or another, are consumers.

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The makers of cancer drugs also make vials with too much medication for many patients. The excess drugs are tossed in the trash — another reason health care costs are so high.

By Marshall Allen

If scientists could precisely regulate gene expression, they could turn off the genes responsible for illness and disease and turn on those that enhance health and the immune system.

“This is why controlling gene expression is so fundamental,” said Northwestern University’s Julius Lucks. “Once you get a good handle on it, you can do anything.”

For Lucks, having a “good” handle on gene expression might be an understatement. He and his team have developed a powerful and versatile tool that achieves gene activation thousands of times better than nature.

Exercise is a sensible part of any personal health strategy, and a new study suggests that even low levels of walking are associated with lower mortality compared to inactivity[1].

U.S. public health guidelines recommend that adults engage in at least 150 minutes of moderate or 75 minutes of intense exercise per week. However, surveys show that only half of U.S. adults actually reach this ideal target level of activity. Worse than that, older adults are even less likely to reach these recommendations, with only 42% of people between the ages of 65 and 74 and 28% of people age 75 or over meeting this goal.

Walking is a great choice for exercise, as it is low impact, convenient, free to do, and requires no special equipment. It is the most common kind of physical activity and is associated with a lower risk of heart disease and diabetes. While there are many studies that have focused on moderate to intense physical activity and mortality, there are considerably fewer studies looking at walking.