BBC News

Scientists have used medical scans to explain exactly what happens when people crack their knuckles.

The NHS is facing a "substantial financial problem" in England which politicians are ignoring during the election campaign, the former head of the service says.

People who have difficulty breathing while asleep are more likely to develop memory problems early on, a study in the journal Neurology suggests.

Tweaking the brain's immune system with a drug has prevented mice developing dementia, a study shows.

The WHO is urging recovered Ebola survivors to be even more cautious during sexual contact to make sure the virus is not passed on to partners.

Divorced women are more likely to have a heart attack than their peers who stay married, US research suggests.

GP services are facing a crisis, with a third of doctors considering retirement in the next five years, a British Medical Association poll suggests.

A Scottish man who had recently returned from west Africa showing possible symptoms of Ebola has tested negative for the virus.

The Greens launch their manifesto with a call for a "peaceful political revolution" to end austerity, tackle climate change and "take back" the NHS.

Two siblings left brain damaged from birth are awarded multimillion-pound payouts in "unprecedented" clinical negligence cases.

Can innovation save lives in Kenya's maternity wards?

Almost half of young people suffer with back pain, new research suggests, and it's being blamed on sedentary lifestyles.

Visitors from outside the EU who receive treatment in NHS hospitals in England are now being charged 150% of the cost under changes brought in to discourage "health tourism".

How is that medically possible?

Suicide claims thousands of lives every year - but figures show that men are around four times more likely to kill themselves than women.

Why do so many fortysomething men kill themselves?

Why are certain images always used to depict mental health issues?

What happens if you don't look after dental implants

Author and anthropologist Sheila Kitzinger - who wrote more than 25 books on childbirth - has died at her Oxfordshire home at the age of 86.

The Australian government announces its intention to stop welfare payments to parents who refuse to vaccinate their children.

Immediate action must be taken by the next government to increase the number of NHS nurses, a report warns.

The Brazilian medic using Shakespeare to help his patients

Many Ebola survivors are likely to face further health issues - including eye and joint problems, the WHO warns.

Parts of the UK could reach the highest level of air pollution on Friday, prompting health warnings.

Being overweight cuts the risk of dementia, according to the largest and most precise investigation into the relationship.

Doctor and director Vitor Pordeus believes his unique drama therapy can cure his patients mental health problems.

Doctors and nurses who treated cancer patient Ashya King criticise his parents while speaking out for the first time in a BBC documentary.

Being overweight cuts the risk of dementia, while underweight people face the highest risk, according to a study involving nearly two million Britons.

Plucking hairs in a precise pattern can make more pop up in their place in mice, a US study shows, but it is uncertain if this applies to humans.

The burden of disease has changed remarkably over the past century, challenging how the health service is run. But what will the coming decades bring?

A study has found that the shorter you are, the greater your risk of heart problems.

GP Zoe Norris speaks to BBC Breakfast about a BMA survey which suggests that longer appointments and better funding are needed to improve services.

Switching between two antibiotics in a well-designed sequence could prove to be a "surprising" new way to combat drug resistance, research suggests.

Longer appointments and better funding are needed to improve services, a survey of GPs suggests.

Scientists have predicted the odds of women developing breast cancer by looking for tiny DNA errors in 77 genes.

Better funding and more time with patients are needed to improve services, according to a survey of GPs by the British Medical Association.

Short people are at greater risk of developing heart problems, a study at the University of Leicester finds.

The government has "undermined and weakened" the NHS in England, a letter signed by 140 doctors says.

The General Medical Council is to review an investigation into the second most powerful person at NHS England, Dame Barbara Hakin.

Widow Margaret Perry explains how lonely she became after her husband died, and how she managed to tackle it.

The UK's care system for dying patients with terminal illnesses needs a major overhaul, says a new report.

More than 100,000 people a year who are dying from terminal illness are not getting the palliative care they would benefit from, says a damning new report.

Living with dementia after one, four and seven years

A future Conservative government would give the NHS in England "whatever" it needs to fill a predicted funding gap, Health Secretary Jeremy Hunt says.

The BBC's Christian Fraser reports on the main parties' policies on the NHS - and the degree of trust shown by the public in politicians, when it comes to health provision.

Have GP services got worse?

The NHS in England has missed its four-hour A&E waiting time target for the past three months with performance dropping to its lowest level for a decade, figures show.

An increasing number of children are being referred to gender identity services