Red Cross declares crisis over blood supply shortage in US for second time its historyFewer donations and higher demand has seen a supply shortage worsen, the American Red Cross tells the BBC.

Limiting sugar before age two linked to better brain healthStudy suggests less sugar in early life is good for long-term brain health, but the evidence is not conclusive.

Why attachment theory is everywhere right now and how it can help youAttachment theory has exploded into the public consciousness. How can you use it to improve your relationships?

My 10-day headache was terminal brain cancerJosh Smith began experiencing brain fog and headaches, but assumed he was "just tired".

Here's what to eat to keep your bones strongOur bone density begins declining earlier than you might think. But ensuring our diet is rich in certain nutrients can help to keep our skeletons strong.

Heatwave anxiety can make you feel 'incredibly helpless' - here's how to manage itExtreme heat can take a toll on mental health - and young people and women are among the groups most at risk, according to one study.

US measles cases reach 35-year highThere have been 2,318 confirmed cases of the virus, higher than last year's total with five months to go.

Using a bathroom 20 times a day - life in the middle of US cyclospora outbreakA historic cyclospora outbreak spreading across the US is causing havoc in pockets of Michigan, the hardest hit state.

We've underestimated the health impacts of heavy periodsAs women have fewer children and more periods, heavy menstrual bleeding is becoming more of a health burden.

US health panel loosens restrictions for controversial peptides popular onlineThe vote marks a win for Health Secretary Robert F Kennedy who has said he's a big fan of the drugs, which haven't been well studied for human use.