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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.

Vaccine skin patch

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Skin patch coated in covid-19 vaccine may work better than injections

Covid-19 vaccines in use today have to be stored at cold temperatures, but a patch covered in tiny plastic spikes coated in a vaccine could provide an alternative

HIV-infected T-cell

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Two people suppressed HIV for years while pausing medication

Empty airport

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Australia has had zero measles in 2021 due to covid-19 border closure

Bacillus subtilis

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Genetically engineered bacteria could heal us from inside our cells

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Are vegan meat alternatives putting our health on the line?

Light micrograph cross section of a normal human testicle or testes. The tunica albuginea is the dense, white inelastic tissue immediately covering the testis. The septa extends from the tunica albuginea into the testicle, dividing the testes into lobules.

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Male fertility could be restored by reimplanting frozen testes tissue

LOS ANGELES, CA - SEPTEMBER 22: Gary Rucker gets a COVID-19 vaccine In the Skid Row neighborhood where the L.A. County Department of 91色情片 Services Housing for 91色情片 division and United Way of Greater L.A. host a COVID-19 vaccination clinic in Downtown on Wednesday, Sept. 22, 2021 in Los Angeles, CA.(Jason Armond / Los Angeles Times via Getty Images)

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How much less likely are you to spread covid-19 if you’re vaccinated?

Cells of the thymus, a lymphoid organ

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Children born without key immune cells saved with engineered organ

Buttons that say STOP GUN VIOLENCE

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Gun violence rose 30 per cent in the US during the covid-19 pandemic

Vials of donor sperm frozen by liquid nitrogen

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Sperm quality has been declining for 16 years among men in the US

Data from 170,000 semen analyses performed in the US between 2005 and 2021 reveals a worrying decline in sperm quality

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Lab-grown human mini-brains kept alive for a year by slicing them up

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Botox relieves endometriosis cramps when injected into pelvic muscles

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Quick saliva test can reveal cannabis use over the past 12 hours

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The controversial new clinical trials that promise faster results