'Deep sleep' turns on puberty

Washington, September 14 (ANI): Slow-wave sleep or 'deep sleep' is intimately involved in the complex control of the onset of puberty, a new study has suggested.

The many changes that occur in boys and girls during puberty are triggered by changes in the brain.

Previous studies have shown that the parts of the brain that control puberty first become active during sleep, but the present study shows that it is deep sleep, rather than sleep in general, that is associated with this activity.

"If the parts of the brain that activate the reproductive system depend on deep sleep, then we need to be concerned that inadequate or disturbed sleep in children and young adolescents may interfere with normal pubertal maturation," Natalie Shaw, lead researcher from Harvard, said.

"This is particularly true for children who have been diagnosed with sleep disorders, but may also have more widespread implications as recent studies have found that most adolescents get less sleep than they require," she said.

In the study, researchers examined pulses of luteinizing hormone (LH) secretion in relation to specific sleep stages in children ages 9-15. LH is essential for reproduction and triggers ovulation in females and stimulates the production of testosterone in males.

They found that the majority of LH pulses that occur after sleep are preceded by deep sleep suggesting that deep sleep is intimately involved in pubertal onset.

The study has been accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology and Metabolism (JCEM). (ANI)

  • Ford Ecosport: A closer look
  • Hyosung GV650 Aquila Pro

    Hyosung GV650 Aquila Pro

    Wed 15 May, 2013
    Hyosung GV650 Aquila Pro

    Cruiser motorcycles might not be very popular in India, but there is still a segment of buyers who prefer to buy these body style of bikes. While there is little option at the lower end of the segment, at high price brackets there are quite a few alternatives. Earlier this year, DSK Motowheels launched the Hyosung GV650 Aquila Pro, which offers quite a lot to the cruiser enthusiast. Priced at Rs. 5.46 lakhs (Mumbai), the GV650 is significant value.

  • India's top 10 best selling SUVs

    India's top 10 best selling SUVs

    Wed 15 May, 2013
    India's top 10 best selling SUVs

    SUVs have become the most favoured body style in the world. So which are the hottest SUVs available in India?

  • Narendra Modi

    Narendra Modi

    Yahoo! India News - Fri 23 Nov, 2012
    Narendra Modi

    From shaking up the very foundations of the Indian government to stirring up unseemly controversies, from showing incredible courage in the face of extreme adversities to losing a reputation built over years of hard work in just a blink of an eye, from setting the electoral hustings afire with golden speeches to getting into trouble for not speaking at all, there were many 'newsmakers' in 2012 who caught the common man's imagination. Some made it for stellar reasons, others for all there is wrong with the society. Here are 12 'newsmakers' that deserve a mention.

  • Arvind Kejriwal

    Yahoo! India News - Fri 23 Nov, 2012

    From shaking up the very foundations of the Indian government to stirring up unseemly controversies, from showing incredible courage in the face of extreme adversities to losing a reputation built over years of hard work in just a blink of an eye, from setting the electoral hustings afire with golden speeches to getting into trouble for not speaking at all, there were many 'newsmakers' in 2012 who caught the common man's imagination. Some made it for stellar reasons, others for all there is wrong with the society. Here are 12 'newsmakers' that deserve a mention.

  • Malala Yousafzai

    Malala Yousafzai

    Yahoo! India News - Fri 23 Nov, 2012
    Malala Yousafzai

    From shaking up the very foundations of the Indian government to stirring up unseemly controversies, from showing incredible courage in the face of extreme adversities to losing a reputation built over years of hard work in just a blink of an eye, from setting the electoral hustings afire with golden speeches to getting into trouble for not speaking at all, there were many 'newsmakers' in 2012 who caught the common man's imagination. Some made it for stellar reasons, others for all there is wrong with the society. Here are 12 'newsmakers' that deserve a mention.

  • Saudi cleric says using air-conditioners by women 'immoral'

    Washington, May 22 (ANI): A self-proclaimed Saudi cleric said that if women turn on air-conditioners at home in their husband's absence could lead to moral depravities.

  • NRI teen invents 30-second phone charger

    Indian-American teen invents gadget that can charge phone in 30 seconds

  • Sahara pulls out of IPL, not to renew BCCI sponsorship

    New Delhi, May 21 (IANS) Pune Warriors India, owned by Sahara India Pariwar, pulled out of the already scandal-hit Indian Premier League (IPL) Tuesday and announced that they will not renew their sponsorship of the Indian cricket team after the present contract expires in December 2013.

  • Sanjay Dutt shifted to Pune jail

    Mumbai, May 22 (IANS) In a surprise move, Bollywood actor Sanjay Dutt was secretly shifted from a Mumbai prison to a Pune jail early Wednesday, official sources said.

  • Manmohan vs Sonia: Policitical ambitions clash
    Manmohan vs Sonia: Policitical ambitions clash

    After nine years in Government, the political ambitions of Manmohan and Sonia are at clash point. The trust deficit is widening. With the Lok Sabha elections fast approaching, both sides are positioning themselves-Manmohan for a dignified exit, if not a third term, and Sonia for a clean slate for son Rahul Gandhi. Manmohan and Sonia are locked in an uncomfortable embrace. The tensions are bound to simmer even if the endgame unfolds months later. Unfortunately, the Congress can no longer blame

  • O.J. compared me to Nicole everyday, says ex-girlfriend

    New York, May 22 (ANI): The former girlfriend of O.J. Simpson, Christie Prody, has revealed that the retired footballer was so obsessed with his former spouse, Nicole Brown, that he mentioned her every single day during their long-term relationship.

  • Sreesanth says did not indulge in spot-fixing
    Sreesanth says did not indulge in spot-fixing

    By Amlan Chakraborty NEW DELHI (Reuters) - Cricketer Shanthakumaran Sreesanth has insisted he is innocent of any wrongdoing in the ongoing spot-fixing scandal and is confident of emerging from the "tough period" with his dignity intact. The 30-year-old bowler was one of three players, along with 11 bookmakers, arrested last week on suspicion of spot-fixing in the Indian Premier League (IPL) Twenty20 competition, the allegations also earning him an immediate suspension from the cricket board. "I

Related Videos

Yahoo! Cricket

Loading...