New brain cells made throughout life

People keep making new brain cells throughout their lives (well at least until the age of 97), according to a study on human brains.
The researchers at the University of Madrid showed that the number of new brain cells tailed off with age.
And it falls dramatically in the early stages of Alzheimer's disease - giving new ideas for treating the dementia.
Most of our neurons - brain cells that send electrical signals - are indeed in place by the time we are born.
Studies on other mammals have found new brains cells forming later in life, but the extent of "neurogenesis" in the human brain is still a source of debate.

An orange juice a day keeps the doctor away! Daily glass of OJ 'cuts the risk of deadly strokes by almost a quarter'

Drinking a glass of orange juice each day may cut the risk of deadly strokes by almost a quarter, a major study suggests.

Volunteers who downed a juice a day saw their risk of a brain clot drop by 24 per cent, according to the decade-long trial, according to Daily Mail.

Researchers in the Netherlands say it's not just orange juice that has the benefit, other fruit juices also appear to cut the risk.

Fresh fruit juices have long been thought of as healthy. But consumers in recent years have been put off by warnings over their high sugar content. 

Story time with e-books 'not as helpful' as print books

Parents and children interact less when reading electronic books together than printed ones, a study suggests.

Researchers from the University of Michigan found parents talked more about the technology than content when using electronic books and the frequency and quality of interactions were better,

The results of studying 37 pairs of parents and toddlers appear in the journal Pediatrics.

In the study, the parents and children were observed reading three different formats - printed books, basic electronic books on a tablet and enhanced e-books with features such as sound effects and animation.

It's spring already? Physics explains why time flies as we age

A Duke University researcher has a new explanation for why those endless days of childhood seemed to last so much longer than they do now -- physics.

According to Adrian Bejan, the J.A. Jones Professor of Mechanical Engineering at Duke, this apparent temporal discrepancy can be blamed on the ever-slowing speed at which images are obtained and processed by the human brain as the body ages, according to Science Daily.

The "People are often amazed at how much they remember from days that seemed to last forever in their youth," said Bejan. "It's not that their experiences were much deeper or more meaningful, it's just that they were being processed in rapid fire."

Bejan attributes this phenomenon to physical changes in the aging human body. As tangled webs of nerves and neurons mature, they grow in size and complexity, leading to longer paths for signals to traverse. As those paths then begin to age, they also degrade, giving more resistance to the flow of electrical signals.

Potent cannabis increases risk of serious mental illness, says study

Smoking potent 'skunk-like' cannabis increases your risk of serious mental illness, say researchers.
They estimate around one in 10 new cases of psychosis may be associated with strong cannabis, based on their study of European cities and towns.
In London and Amsterdam, where most of the cannabis that is sold is very strong, the risk could be much more, they say in The Lancet Psychiatry, according to BBC.
Daily use of any cannabis also makes psychosis more likely, they found.
Experts say people should be aware of the potential risks to health, even though the study is not definitive proof of harm.