Why the lights don't dim when we blink

Every few seconds, our eyelids automatically shutter and our eyeballs roll back in their sockets. So why doesn't blinking plunge us into intermittent darkness and light? New research, shows that the brain works extra hard to stabilize our vision despite our fluttering eyes according to Science daily.

Scientists have found that blinking does more than lubricate dry eyes and protect them from irritants. In a study, they found that when we blink, our brain repositions our eyeballs so we can stay focused on what we're viewing.

Could this prevent heart failure? Tiny robot that 'hugs' damaged organs to help them beat could save thousands of lives

A revolutionary new 'soft robotic heart' that fits like a glove around the organ could help people with heart failure according to Daily mail.

Conventional mechanical hearts pump the patient's own blood through their body using a propeller.

But the problem with this is that the pump comes into contact with the patient's blood – putting it at risk of clotting. This needs to be controlled using blood thinning drugs.

The new design fits outside the patient's own heart like a glove, squeezing it to make it beat.

It can work because many people with damaged hearts have not lost all function.

The soft silicone device, which 'hugs' the damaged heart, is the fruit of research in 'soft robotics' – mechanical structures designed to mimic soft body structures.

It stiffens and relaxes when inflated with pressurised air.

Around 41 million people worldwide suffer from heart failure, usually developing the condition after suffering a heart attack.

Too much sitting, too little exercise may accelerate biological aging

Researchers report that elderly women who sit for more than 10 hours a day with low physical activity have cells that are biologically older by eight years compared to women who are less sedentary according to Science daily.

The study, found elderly women with less than 40 minutes of moderate-to-vigorous physical activity per day and who remain sedentary for more than 10 hours per day have shorter telomeres -- tiny caps found on the ends of DNA strands, like the plastic tips of shoelaces that protect chromosomes from deterioration and progressively shorten with age.

One in five young people lose sleep over social media

1 in 5 young people regularly wake up in the night to send or check messages on social media, according to new research. This night-time activity is making teenagers three times more likely to feel constantly tired at school than their peers who do not log on at night, and could be affecting their happiness and wellbeing according to Science daily.

Over 900 pupils, aged between 12-15 years, were recruited and asked to complete a questionnaire about how often they woke up at night to use social media and times of going to bed and waking. They were also asked about how happy they were with various aspects of their life including school life, friendships and appearance.

Aspirin slows spread of colon, pancreatic cancer in tumor cells

Researchers have found that aspirin may slow the spread of some types of colon and pancreatic cancer cells according to Science daily.

Platelets are blood cells involved with clotting. They promote the growth of cancerous cells by releasing growth factors and increasing the response of certain proteins that regulate tumor cell development (oncoproteins). Low doses of aspirin, an anti-platelet drug, have been shown to reduce the risk of some types of gastrointestinal cancers, but the process by which aspirin hampers tumor growth has been unclear.