Physical exercise increases chances of survival after first heart attack
People who exercise are more likely to survive their first heart attack, a US study suggests. To examine the link between early-death after the first heart attack, researchers from John Hopkins University School of Medicine studied 2,061 patients who suffered their first heart attack. It was found that patients with a high fitness levels during their initial stress test were 40% less likely to die within a year following their first heart attack compared to patients with lower fitness levels. “While up to 50% of fitness may be based on genetics, physical activity is the only behaviour we have that can improve fitness," said lead researcher Dr. Clintor Brawner. The study was published in the journal Mayo Clinic Proceedings. Read more here.
Eating fish every week can lower Alzheimer’s risk
Eating fish regularly can lower the risk of Alzheimer’s disease in older adults, despite the high mercury content in them, shows a US study. Researchers from Rush University Medical Centre, Chicago used data from a memory and aging research project which was tracking a group of older people living in Chicago retirement homes from 2004 to 2013. They kept a regular tab of the amount of fish and seafood consumed by them. After their death an autopsy was carried out to see how it affected their brain. Researchers found that the mercury content was higher in people who ate more seafood. But those who ate seafood one or more times a week also had less Alzheimer’s-related brain pathology, such as plaques or neurofibrillary tangles, compared to those who ate little or no seafood. The study was published in JAMA. Read more here.
Yawning is contagious and women more susceptible to it
Women are more likely to yawn in response to another person’s yawn than men, an Italian research suggests. Researchers from Pisa University secretly studied people in hundreds of work and social situations for a period of five years. They took note if people yawned in reply to someone’s yawn within 3 minutes. It was found that men and women yawned spontaneously at equal rates but female participants were more likely to yawn if someone who they knew yawned around them. The rate of yawning was significantly lower if the trigger yawner was a mere acquaintance. Researcher feel women are more empathetic than men by nature which makes them better at understanding and sharing the internal emotional states of others, hence the yawning. The study was published in journal Royal Society Open Science. Read more here.
Women who tan indoor face greater risk of skin cancer
Indoor tanning can increase the risk of melanoma in women compared to men a US study warns. Researchers from University of Minnesota examined data on 681 adult patients below 50 years of age who were diagnosed with melanoma between 2004 and 2007. They found that 70% of melanoma cases were reported in women. When interviewed, it was found that almost 80% of women been tanning indoor, compared to 44% of the men. Researchers referred to a World Health Organization (WHO) study of 2009 which suggested that artificial ultraviolet radiation from indoor tanning devices can cause skin cancer. Melanoma is considered the most fatal of all skin cancers as it spreads to other body organs quite rapidly. The study appeared in JAMA Dermatology. Read more here.
Compiled by Abhijit Ahaskar