Women on the pill are able to manipulate or suppress their menstrual cycles to have fewer "periods", or to avoid bleeding at important or inconvenient times.
We usually focus on the physical health effects of the pill, yet the most common reason women stop or change the pill is mental health side effects.
New research with elite sportswomen found half use hormonal contraceptives.
If you need an alarm to get up in the morning, you're probably not getting enough sleep.
Many women are prescribed the pill without a definitive diagnosis of endometriosis.
Women shouldn't be disheartened by the latest finding that exercise doesn't lead to weight loss in the first month or two. There are other reasons to persist.
The "love hormone" system starts to develop in the womb and is important in helping us deal with stress.
...just don't call it the new phrenology.
Teenagers aren't just lazy. Their sleep hormones aren't calibrated to let them get up and go until later in the morning – which has academic and health consequences when school starts too early.
Parents' DNA try to manipulate one another in a bid to shape junior in their mould.
Having a newborn can be rough, whether you're a mom or a dad. New research ties men's testosterone to their postpartum depression – with some surprising upsides for their partners.
Most pregnant women are aware of the advice to quit smoking, avoid alcohol, and fear soft cheese, but much less is done to avoid stress during pregnancy, despite its harms.
If something goes wrong in pregnancy, a boy baby is more likely to be born malnourished or stillborn than a girl. This may have an evolutionary basis.
Women have evolved to have stronger immunity than men. But this comes with downsides -
women are more likely to have autoimmune diseases due to their "reactive" immune systems.
Until now, the processes that lead some girls to start developing before others have been poorly understood.
Estrogens also have many positive effects on mental health, cognitive function, libido and protection of the brain, possibly even slowing the onset of Alzheimer’s disease.
Sex hormones do affect us. But to what extent?
Vaginal discharge varies in consistency, texture, smell, taste and volume in the same woman from day to day, week to week, month to month and beyond.
Gigantism and acromegaly are rare conditions where a benign tumour causes excessive production of growth hormone (GH), which stimulates the growth of the skeleton and all tissues in the body.
Are men hot-blooded, sex-driven creatures that think about sex every seven seconds? Not quite.