Jogging fast could do more harm
than good: Research
Just an hour of slow running per week could bolster your
chances of living long. ‘If your goal is to decrease risk of death and improve
life expectancy, jogging a few times a week at a moderate pace is a good
strategy. Anything more is not just unnecessary, it may be harmful,’ said Peter
Schnohr, researcher at the Frederiksberg Hospital in Copenhagen, Denmark.
Jogging from one to 2.4 hours per week was associated with
the lowest mortality rates and the optimal frequency of jogging was no more
than three times per week. The researchers looked at 5,048 participants in the
Copenhagen City Heart Study and questioned them about their activity. They
identified and tracked 1,098 healthy joggers and 413 healthy but sedentary
non-joggers for 12 years.
While strenuous joggers were as likely to die as sedentary
non-joggers, light joggers had the lowest rates of death, the findings showed.
‘It is important to emphasize that the pace of the slow joggers corresponds to
vigorous exercise and strenuous jogging corresponds to very vigorous exercise,’
Schnohr said. ‘When performed for decades, this activity level could pose
health risks, especially to the cardiovascular system,’ Schnohr added. The
study was published in the Journal of the American College of
Cardiology.
Source: www.thehealthsite.com
04.02.2015
Switch off WhatsApp for healthy sleep
The more your teenage son chats on Facebook during
the sleep hours, more he or she is at an increased risk of sleep problems and
depressive symptoms, finds a study. Researchers from University of Basel in
Switzerland analysed more than 300 students and found that that teenagers who
own smartphones spend more time online – also during the night which may affect
their sleep.
‘Due to wireless internet connections and cheap flat
rates, teenagers with smartphones spend more time online and communicate with
their peers for less money – for example via WhatsApp – which has changed their
digital media use pattern profoundly,’ they noticed. The results showed that
during weekdays, teenagers with smartphones spent more time on the internet
than their peers with conventional mobile phones; on average two hours compared
to one hour. In addition, they wrote more text messages daily – on average 85
messages compared to seven messages.
A particularly noticeable difference was found for the
time when the teenagers were in their beds at night. Only 17 percent of
smartphone owners switched their devices off or put them on silent during the
night compared to 47 percent of the teenagers with conventional mobile phones.
Moreover, teenagers with smartphones indicated to watch videos, to be online,
and to text with friends more often during the night than their counterparts
with conventional mobile phones. ‘Most importantly, teenagers who used digital
media at night had an increased risk for poor sleep and depressive symptoms,’
the team said.
The researchers recommend that teenagers who suffer from
sleep disorders or severe daytime tiredness to switch their digital media
devices off at least one hour before bedtime. The findings were published in
the Journal of Youth and Adolescence.
Source: www.thehealthsite.com
04.02.2015
A minute's success pays the failure
of years
Robert Browning
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