KATHMANDU — The age of father at the time of his children are born can influence the social development, behaviour including conduct and peer problems, hyperactivity and emotional quotient of the resulting offspring, according to a study published in the Journal of the American Academy of Child and Adolescent Psychiatry (JAACAP).
Researchers at the Seaver Autism Center for Research and Treatment at Mount Sinai Hospital in New York City analyzed social behaviors of children from early childhood through adolescence, finding that children whose father was either very young or older at conception differed in how they gained social skills.
“Our study suggests that social skills are a key domain affected by paternal age,” said Magdalena Janecka, doctoral candidate at the Icahn School of Medicine in New York City.
The study analyzed more than 15,000 twins who were followed from age 4 to 16 to assess the children’s social skills in relation to their father’s age at birth.
The reserchers focused on the developmental patterns of social skills and noted differences in areas of hyperactivity, emotionality, as well as conduct and peer problems. Then, separately, they compared whether paternal age had more of an influence than genetic and environmental factors.
However, by the time they reached adolescence, they lagged behind their peers who had middle-aged fathers.
“What was interesting is that the development of those skills was altered in the children of both older as well as very young fathers,” Janecka added.
“In extreme cases, these effects may contribute to clinical disorders. Our study, however, suggests that they could also be much more subtle,” the study said.
These findings may offer insights into how paternal age influences children’s risk of autism and schizophrenia, which was shown in earlier studies, the researchers said.
“Our results suggests that children born to very young or older fathers may find social situations more challenging, even if they do not meet the diagnostic criteria for autism,” Janecka said.
Further, development of social skills was found to be influenced predominantly by genetic rather than environmental factors and that those genetic effects became even more important as the paternal age increased.Follow @gorkhapost
Drinking 3 cups of coffee or tea daily may keep stroke risk at bay
KATHMANDU — There have been several conflicting studies on the health benefits of drinking coffee and tea and their various varieties. But drinking up to three cups of coffee or tea in a day is safe because it reduces irregular heartbeat and stroke risk, according to a new study published in the journal JACC: Clinical Electrophysiology.
Coffee has previously been believed to worsen abnormal heart rhythms, as doctors generally discourage patients suffering from the condition. However, the results of this particular study say that a daily consumption of upto 300 mg of caffeine may be safe for arrhythmic patients.
This is because the caffeine acts as a stimulant to the central nervous system and blocks the effect of adenosine. Adenosine is a chemical which causes Atrial Fibrillation (AFib).
A single cup of coffee contains about 95 mg of caffeine. It acts as a stimulant to the central nervous system and works to block the effects of adenosine — a chemical that causes AFib.
AFib is the most common heart rhythm disorder, causes the heart to beat rapidly and skip beats, and if left untreated, can cause strokes.
“There is a public perception, often based on anecdotal experience, that caffeine is a common acute trigger for heart rhythm problems,” said lead author Peter Kistler, Director at Melbourne’s Alfred Hospital.
But, “caffeinated beverages such as coffee and tea have long-term anti-arrhythmic properties mediated by antioxidant effects and antagonism of adenosine,” he added.
A meta-analysis of 228,465 participants showed that AFib frequency decreasing by 6 per cent in regular coffee drinkers, and an analysis of 115,993 patients showed a 13 per cent reduced risk.
Another study of 103 post-heart attack patients who received an average of 353 mg of caffeine a day showed improvement in heart rate and no significant arrhythmias — or abnormal heart rhythms, that cause the heart to beat too fast, slow or unevenly.
However, in two studies, where patients drank at least 10 cups and nine cups of coffee per day, showed an increased risk for ventricular arrhythmias (VAs) – a condition in which the lower chambers of the heart (ventricles) beat very quickly.
On the other hand, patients with pre-existing heart conditions who consumed two or more energy drinks — that contains concentrated caffeine — per day reported palpitations within 24 hours.
With Agency InputsFollow @gorkhapost