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91色情片

Discover the latest health news, scientific discoveries and big ideas about the human body and treating diseases, covid-19, diet, fitness, exercise, wellness and how to live a healthy life.

Male friends eating pizza with beer on street

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Men may eat more in summer because sunlight makes them hungrier

Sunlight hitting the skin seems to boost secretion of an appetite-boosting hormone in men, causing them to eat more in summer 鈥� but women aren't affected in the same way

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A sperm sample with low numbers of sperm

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Infertility in some men may be caused by X chromosome mutations

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Commuters

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UK’s latest omicron wave being driven by BA.4 and BA.5 covid variants

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Hungry and angry woman

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We really can become 鈥榟angry鈥�, suggests first real-world test of idea

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alzheimer's disease with MRI; Shutterstock ID 1025800153; purchase_order: -; job: -; client: -; other: -

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Drugs used to treat ADHD and depression may ease Alzheimer’s symptoms

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Deep brain stimulation involves implanting electrodes in the cerebral lobes of the brain, linked through the scalp to wires that lead to a battery implanted below the skin that send electrical impulses to specific areas of the brain

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Brain electrodes may be a long-lasting aid for severe depression

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Illustration of the CRISPR-Cas9 gene editing complex

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鈥楽ofter鈥� form of CRISPR may edit genes more accurately

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Dissolvable implant relieves pain. Hybrid microfluidic and electronic system for cooling and simultaneously measuring nerve temperature.

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Implantable device blocks pain by chilling nerves inside the body

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The development of a human embryo

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Why two-thirds of IVF embryos suddenly stop developing

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GUANGZHOU, CHINA - JUNE 20: Chinese Phd student and researcher Zhang Dongjing displays a container of sterile adult male mosquitos that are ready to be released in a lab in the Mass Production Facility at the Sun Yat-Sen University-Michigan University Joint Center of Vector Control for Tropical Disease on June 20, 2016 in Guangzhou, China. Considered the world's largest mosquito factory, the laboratory raises millions of male mosquitos for research that could prove key to the race to prevent the spread of Zika virus. The lab's mosquitos are infected with a strain of Wolbachia pipientis, a common bacterium shown to inhibit Zika and related viruses including dengue fever.??Researchers release the infected mosquitos at nearby Shazai island to mate with wild females who then inherit the Wolbachia bacterium which prevents the proper fertilization of her eggs. The results so far are hopeful:?? After a year of research and field trials on the island, the lab claims there is 99% suppression of the population of Aedes albopictus or Asia tiger mosquito, the type known to carry Zika virus. Researchers believe if their method proves successful, it could be applied on a wider scale to eradicate virus-carrying mosquitos in Zika-affected areas around the world. ??The project is an international non-profit collaboration lead by Professor Xi Zhiyong, director of the Sun Yat-Sen University-Michigan University Joint Center of Vector Control for Tropical Disease with support from various levels of Chinas government and other organizations.?? (Photo by Kevin Frayer/Getty Images)

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Zika or dengue infections make you more appealing to mosquitoes

Infection with Zika or dengue viruses affects the microbiome of the skin, ramping up production of compounds that entice mosquitoes. But treatment with a common acne medication may cancel out this effect

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Spinal cord stimulation enables paralysed monkeys to move their arms

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Life expectancy of Native American peoples falls 4.7 years since 2019

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Carbon monoxide foam in the rectum eases bowel disease in mice

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Advising alcohol abstinence in pregnancy may do more harm than good

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