Islamabad - Eating a meal rich in compounds called flavonoids that are found in onions reduce some early signs of heart disease, a research mentioned.

A research team focused on one of the compounds, quercetin, which is found in tea, onions and apples, says a report.

They examined the effect of the compounds produced after quercetin is broken down by the body.

They were shown to help prevent the chronic inflammation, which can lead to thickening of the arteries.

Previous research had shown quercetin is metabolised very quickly by the intestine and liver and is not actually found in human blood.

So instead the researchers concentrated on the compounds that enter the bloodstream after quercetin is ingested, absorbed and metabolised.

The compounds were used in concentrations similar to those that would be produced following digestion to treat cells taken from the lining of the blood vessels.

They tested compounds that are actually found in the blood, rather than the flavonoid in food before it is eaten, as only these compounds will actually come into contact with human tissues and have an effect on arterial health.

The research found that in the case of one inflammatory process, a lower dose of the compounds achievable by eating 100g to 200g of onions actually had a bigger impact.

Coffee might improve your endurance during exercise

A new research shows that drinking a coffee before a run might help you keep going for longer.

Simon Higgins, lead author, poured over 600 studies in his search for experiments that measured the interaction between caffeinated coffee and performance during exercise.

A wealth of studies looked at the impact of caffeine in tablet form, but much fewer examined the effects of caffeine ingested through coffee.

Only nine randomised control trials were found that specifically investigated coffee and endurance.

Caffeine is probably the most used stimulant and psychoactive drug on the planet. Each day, Americans consume an average of 27.3 oz of coffee; an estimated 10 per cent of Americans consume more than 1,000 mg of caffeine on a daily basis.

Caffeine is absorbed relatively quickly once it reaches the stomach and hits peak levels in the blood 1-2 hours after ingestion. The stimulant is absorbed into most types of body tissue and has an effect on a wide array of systems.

In the 1970s, scientists believed that caffeine influenced the way energy was made available to the body and thus enhanced performance. In the 80s, opinion switched. The scientific consensus was that caffeine did not, in fact, improve physical endurance.

Today, scientific opinion holds that caffeine can enhance certain types of physical performance, including endurance and time trials. It is generally believed that caffeine in tablet form is more beneficial to performance than when consumed as coffee.

Higgins wanted to dip into the patchy literature to see if coffee did, in fact, increase endurance to a useful degree. His re-analysis of the existing literature unearthed some positive results. In 5 out

He says this is helpful for athletes because coffee is a naturally occurring compound.

There’s the potential that getting your caffeine by drinking coffee has similar endurance

Magnetic brain stimulation may aid recovery for stroke survivors

There is new hope for better recovery for patients who survive a debilitating stroke. Italian researchers have discovered that the use of magnets to stimulate the nerve cells of the brain can help to correct the condition known as hemi spatial neglect, which prevents stroke patients from seeing or recognizing anything on one side of their body. The details of the research appeared in the journal Neurology.

Previous studies have estimated that between 20 and 50 percent of patients suffer hemi spatial neglect following a stroke. The condition most often occurs when stroke damaged is suffered in the right half of the brain.

Giacomo Koch, Managing Director (MD) of Santa Lucia Foundation in Italy stated that the treatment is based on the theory that hemi spatial neglect results when a stroke disrupts the balance between the two hemispheres of the brain. He explained a stroke on one side of the brain causes the other side to become overactive, and the circuits become overloaded.”

Currently, treatment for hemi spatial neglect combines physical therapy with brain retraining, which involves performance of mental tasks via a computer or pen and paper. However, the treatment is often not effective enough to provide significant improvement.

A new treatment, known as transcranial magnetic stimulation (TMS), uses a sizable magnetic coil placed against the patient scalp to create mild electric currents that stimulate nerve cells, which may have the ability to restore balance between both sides of the brain.