Chris Tarrant has spent a week in hospital after suffering a mini-stroke on an 11-hour plane journey, his agent has told The Sun.
The Who Want to be Millionaire presenter, 67, was rushed from Heathrow Airport to hospital in West London after falling ill on a plane from Burma.
At first doctors thought he had suffered an asthma attack, before discovering a potentially fatal blood clot in his leg.
Tarrant's agent Paul Vaughan told the paper (£): “The doctor describes it as a mini stroke, probably brought on by the asthma and bronchitis on the plane. They found a clot which they managed to break up."
He added: “He is determined to leave hospital. But he’s not going back to work. This is a nasty wake-up call.”
Eating oily fish can delay the breakdown of brain cells in later life, slowing the ageing process, a study has found.
People with higher levels of omega-3 fatty acids, found in fish like salmon and anchovies, also preserve bigger brains as they aged, research revealed.
In particular, they maintain more nerve cells in the hippocampus, the brain's key memory centre.
Scientist Dr James Pottala, from the University of South Dakota said: "Results suggest the effect on brain volume is the equivalent of delaying the normal loss of brain cells that comes with ageing by one to two years."
Checking your pulse is a simple way of seeing if you are at risk of a heart condition that could lead to strokes, the chief executive of the British Heart Foundation has said, after new research revealed that more than a million people had been diagnosed with atrial fibrillation.
Simon Gillespie said:
The real danger with atrial fibrillation is that some people don't realise they have it. You can be going about your daily routine oblivious to the fact you're five times more likely to have a devastating stroke.
[Only] through research can we tackle this dangerous disorder and prevent its devastating consequences.
The British Heart Foundation has revealed that more than a million people in the UK now live with a condition that causes the heart to beat irregularly and can lead to strokes.
According to the research:
- The heart condition causes an irregular and often abnormally fast heart rate, frequently leading to dizziness and shortness of breath
- Sufferers may also feel palpitations and become very tired
- A normal heart rate should be between 60 and 100 beats a minute when a person is resting, with a regular rhythm
- Some people with atrial fibrillation have no symptoms and are completely unaware that their heart rate is irregular
- If left untreated, atrial fibrillation can significantly increase the risk of a blood clot forming inside the heart, which increases the risk of stroke five-fold
- The BHF said atrial fibrillation is responsible for 22,500 strokes a year in the UK
More than a million people in the UK now live with a condition that causes the heart to beat irregularly and can lead to strokes.
Data from the British Heart Foundation (BHF) shows the UK has, for the first time, topped the million mark in the number of people diagnosed with atrial fibrillation.
The figure is up almost 20% on five years ago. High blood pressure, heart valve disease and binge drinking are among the causes alongside the fact people are living longer.
Almost half of patients who need potentially life-saving stroke surgery do not get it quick enough despite guidelines being in place since 2008.
A report from the Royal College of Surgeons and the Vascular Society of Great Britain and Ireland found 44% of people who need surgery of the neck arteries in order to prevent a stroke are not receiving it within the two week timeframe set by the National Institute for Health and Care Excellence.
Stroke rates have fallen by almost 40 percent in some parts of the UK, according to a major new study.
Researchers from King's College, London found the incidence of strokes in a large area of south London fell by 39.5% between 1995 and 2010.
Rates fell in men, women, white groups and those aged over 45 - but not in those aged 15 to 44, or black groups.
Dr Madina Kara, researcher at the Stroke Association, said in response to the study: "It's encouraging to see such a striking reduction in the number of people having a stroke in the past 16 years.
"This reduction, however, is not being mirrored in those under 45 years old, and the black population, where the incidence of stroke remains high."
Researchers investigated data in the South London Stroke Register, which covers an area with a population of more than 350,000.
Millions of lives could be saved every year if people ate more potassium-rich foods such as bananas and cut down on their salt intake, health experts have said.
People who have a high potassium intake have a 24% reduced risk of stroke, according to a new study.
And increasing levels of potassium - which can be found in many foods including fruit, vegetables, nuts, seeds, milk, fish, beef, chicken, turkey and bread - can help to reduce high blood pressure, the results indicate.
Researchers also said that increased levels of the chemical do not have an adverse effect on kidney function in adults.
Previous studies have suggested that older people are at an increased risk of harm from potassium because as people get older, their kidneys may become less able to remove potassium from their blood.
The Department of Health advises that older people should not have potassium supplements unless advised to take them by a doctor.
It says that adults need 3,500mg of potassium a day - which people should be able to get from eating a balanced diet.
The research, published on bmj.com, analysed data on potassium intake and health concerning 128,000 participants, who took part in 33 trials.