Articles on Sex hormones

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Hand development is shaped by evolution, biology and environment. Cunaplus_M.Faba/iStock via Getty Images Plus

Why are our fingers different lengths?

Your fingers’ lengths are just one feature of many that let your hands grasp, press, pull and otherwise interact with the world.
Beyond the change: what are the cardiovascular risks women face during menopause? When periods stop, oestrogen levels drop. This is problematic because the female sex hormone protects the heart by helping to control cholesterol levels and reduce the risk of fat building up in the arteries. SewCreamStudio/Shutterstock

Beyond hot flushes: what menopause can do to your heart – and why it matters

Heart disease isn’t just a “man’s problem”. Men and women’s bodies handle fats differently in midlife. What are the cardiovascular risk factors and is hormone therapy good for heart health?
romain-jorge/Shutterstock

Some young trans people take sex hormones so their bodies better align with their gender. What are the benefits and risks?

For some trans and gender diverse adolescents, physical changes in puberty can be distressing and lead to a sense of disconnection from their true sense of self.
Neuroscientists are investigating how and when hormones affect the risk for relapse to prescription opioids. ArtistGNDphotography/E+ Collection via Getty Images

New research suggests estrogen and progesterone could play role in opioid addiction and relapse

Why are some individuals at greater risk for developing opioid dependence and addiction? Two neuroscientists at Rowan University discuss their latest findings.
Like natural hormones, known as endogenous hormones, the artificial hormones contained in the pill, known as exogenous hormones, can have effects on the brain. (Shutterstock)

The contraceptive pill also affects the brain and the regulation of emotions

Oral contraceptives modify the menstrual cycle. What’s less well known is that they also reach the brain, particularly the regions important for regulating emotions.
Rising temperatures are not just directly lethal to fish but also result in hormonal imbalances which threaten entire populations. (Jonathan Munera L.)

How climate change‑induced stress is altering fish hormones — with huge repercussions for reproduction

Climate change is causing higher levels of stress in fish, and the resulting hormonal imbalances are fundamentally altering entire populations.

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