Washington, Nov 12 : Working out on a stationary bicycle or walking on a treadmill just 25 to 30 minutes daily can modestly reduce hospitalization or death risk in heart failure patients, say a new study.

The HF-ACTION trial (A Controlled Trial Investigating Outcomes Exercise TraiNing) led by Dr Christopher O''Connor, director of the Duke Heart Centre showed that exercising improved outcomes for patients who have suffered heart failure.

Medan, Indonesia  - Maftuh moans in pain as he writhes on the hot asphalt road and holds his injured leg. Latifah lies beside him, her face covered in blood.

The pair had an accident in chaotic Indonesian road traffic. Their becak, a bicycle with a sidecar for carrying passengers, was rammed by a bus.

But help is in sight: An ambulance appears within minutes. Paramedics emerge to treat the injured and transport them to hospital as bystanders applaud.

Vatican City - The Vatican's top health issues official reiterated Tuesday the Roman Catholic Church's opposition to embryonic stem cell research - a field of study supported by US president-elect Barack Obama.

Cardinal Javier Lozano Barragan said stem cells taken from human embryos and involving the destruction of the embryos, "served no purpose with no health cure to date" resulting from such scientific research.

The Church instead championed research on adult stem cells that, Barragan said, have been shown to have "positive value."

Washington, Nov 11 : A biological reaction within human cells which is essential to life can take almost 2.3 billion years - about half the age of the Earth – to complete if there’s no enzyme to speed up the process.

All biological reactions within human cells depend on enzymes. Their power as catalysts enables biological reactions to occur usually in milliseconds.

London, Nov 11 : University of Liverpool scientists have devised a new therapy programme that will help depressed new mums in developing countries beat the blues.

Professor Atif Rahman from the School of Population, Community and Behavioural Sciences was the one who developed the therapy programme while working as a Wellcome Trust Career Fellow in Tropical Medicine in Rawalpindi, Pakistan.

"Depression is one of the leading causes of mental illness in the world and when the condition affects mothers with newborn babies, it can lead to serious consequences" Lancet quoted him as saying.

Washington, Nov 11 : A new study from Cornell University sheds light on how cells help wipe out ‘biological waste’ from the body, which if accumulates can lead to many diseases, including Alzheimer''s, cystic fibrosis and developmental disorders.

The researchers revealed that cells have developed complex systems for recycling, reusing and disposing of damaged, non-functional waste proteins.

When such systems malfunction and these proteins accumulate, they can become toxic, resulting in many diseases.