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POPSGirls entering puberty by the age of six - but are drugs the answer?
"Early puberty has even been linked to watching too much television. A few years ago, Italian scientists found that children who watched three hours a day produced less of the sleep hormone melatonin - low levels of the hormone play an important role in the timing of puberty. But perhaps more worrying is the theory that it's exposure to environmental chemicals which is causing the drop in the age of puberty. These chemicals mimic the effect of hormones, disrupting the normal timing of sexual maturing. Whatever the cause, growing numbers of children are being deprived of childhood and are turning, physically, into mini-adults at an increasingly young age. But without the emotional maturity to deal with these changes, they are vulnerable to exploitation. In Britain, it is now estimated that up to at least one in six children under ten is affected. Indeed, there is a belief that schoolgirls as young as six are entering puberty".
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POPSThe Teen Brain Human and animal studies, Jensen and Urion note, have shown that the brain grows and changes continually in young people—and that it is only about 80 percent developed in adolescents. The largest part, the cortex, is divided into lobes that mature from back to front. The last section to connect is the frontal lobe, responsible for cognitive processes such as reasoning, planning, and judgment. Normally this mental merger is not completed until somewhere between ages 25 and 30—much later than these two neurologists were taught in medical school. There are also gender differences in brain development. As Urion and Jensen explain, the part of our brain that processes information expands during childhood and then begins to thin, peaking in girls at roughly 12 to 14 years old and in boys about two years later. This suggests that girls and boys may be ready to absorb challenging material at different stages, and that schools may be missing opportunities to reach them.
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POPSWhy We Laugh And Cry I'm the type of person who can laugh and/or cry at just about anything. It makes me happy to do both. Sometimes people can say to me, "Oh, don't cry" but I most often feel and say "Oh don't worry, it's a good cry" and this article explains why it always apparently feels so good afterwards doing either. We have emotions and responses to them for a reason. Use them and we may just live longer, healthier and happier lives because of it! :)
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POPSYou CAN Die Of A Broken Heart I have seen animals pine to death over the loss of a beloved companion, so why should people be any different? Old article, but interesting nonetheless.
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POPS(Rethinking) Gender " What is gender anyway? It is certainly more than the physical details of what's between our legs".
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POPSDo Plants Have Feelings? If plants do have some sort of "feelings", what are all the vegans and vegetarians going to do? After all, you can't live on love alone... ;)
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POPSWhat happens when you cry? " one study collected both reflex tears and emotional tears (after peeling an onion and watching a sad movie, respectively). When scientists analyzed the content of the tears, they found each type was very different. Reflex tears are generally found to be about 98 percent water, whereas several chemicals are commonly present in emotional tears First is a protein called prolactin, which is also known to control breast milk production. Adrenocorticotropic hormones are also common and indicate high stress levels. The other chemical found in emotional tears is leucine-enkephalin, an endorphin that reduces pain and works to improve mood. Of course".
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POPSThe Role of Light on Human Health Rea envisions "real-time light prescriptions" to help people receive or avoid light at the appropriate times. Simple measures to control when and how much circadian light we receive could help nightshift workers stay alert on the job and sleep more effectively during the day, help cure jet lag, decrease depression, and generally help everyone get a proper night's sleep. The ability to modify circadian rhythm could potentially mitigate the negative health effects that some researchers believe are brought on by disruptions to the light-dark cycle. Recent studies have found a link between health and changes in the natural circadian rhythm. The Journal of the National Cancer Institute published a series of articles, for example, that showed night shift workers had a higher incidence of breast cancer; and, last year, the World Health Organization's International Agency for Research on Cancer cited night work as a potential breast cancer risk factor.
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POPSMale menopause? Yes, it’s real Andropause is a medical condition, diagnosed with a blood test by a physician that reveals testosterone levels below a certain level. If a diagnosis of andropause is warranted, treatment with testosterone replacement may be an option, depending on a man’s health history. However, the biggest, and most misunderstood, symptom of declining testosterone is a decrease in libido. Testosterone is truly the hormone that stokes the flames of desire. Many men confuse andropause with erectile dysfunction (ED), because they often occur around the same time. These men often turn to an ED medication, such as Viagra, to improve their erectile ability, which works for a time in most cases. However, as men get older, the gap between desire and arousal widens and many men become deeply disappointed when Viagra doesn't give them the desire to have sex. That's because Viagra doesn't boost testosterone levels.<<
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POPSLove Is Blind Other hormones, oxytocin and vasopressin, kick in later and appear to be crucial for forming long-term partnerships. Couples who have been together for several years show increased brain activity associated with these chemicals, when they look at pictures of their partner. Oxytocin is produced when couples have sex and touch, kiss and massage each other - the hormone makes us more trusting, helps overcome "social fear" and is important for bonding. Brain scans of people in love show that the old adage "love is blind" really is true. While the dopamine reward areas are excited in love, regions linked with negative emotions and critical social judgement switch off.
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POPSWhy Having Big Buttocks Is Good for Your Health Working on mice, the team transplanted fat from one location of the animals' body to the other. Subcutaneous fat removed to the abdomen triggered body weight and fat mass losses, and a decrease in blood sugar levels. The rodents also got more responsive to insulin, the hormone controlling the way in which the body metabolizes sugar. Insulin resistance triggers the type 2 diabetes. When visceral fat was placed to other body regions, it induced no effect.
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POPS Elevating Democracy If there is anything democracy requires and thrives on, it is the willingness to embrace debate and respect one another and the freedom to shun received wisdom.
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