This might be why your hair turns grey — and different well being tales you might have missed

It’s been a busy week — from lab leak theories at a COVID-19 origins hearing to the Supreme Court docket’s eagerly anticipated decision on access to the abortion tablet mifepristone. However that’s not all that’s happening within the well being area. Listed here are some fascinating updates you might have missed, as reported by Yahoo Information companions.

A brand new examine would possibly clarify why your hair turns grey as you age

A study published on Wednesday might have answered why our hair turns grey as we age, Yahoo News partner CBS News reported.

Researchers at NYU Grossman Faculty of Medication studied melanocyte stem cells in mice — a kind of cell that’s additionally present in people — and found that these cells might ultimately get “caught” as one ages, ultimately shedding the power to maneuver between progress compartments in hair particles and produce the pigment that gives hair colour.

If this outcome can be relevant to people, researchers are hopeful it might result in the invention of a approach to forestall hair from shedding its youthful hue.

“The newfound mechanisms increase the likelihood that the identical fixed-positioning of melanocyte stem cells might exist in people,” Qi Solar, the examine’s lead investigator, said in a press release. “In that case, it presents a possible pathway for reversing or stopping the graying of human hair by serving to jammed cells to maneuver once more between creating hair follicle compartments.”

UNICEF report finds 12.7 million youngsters in Africa missed vaccinations

A brand new report released by UNICEF on Thursday discovered that between 2019 and 2021, 12.7 million youngsters in Africa missed a number of vaccinations because of disruptions attributable to the COVID-19 pandemic, making a “baby survival disaster” on the continent, Yahoo News partner the Canadian Press reported UNICEF blamed “intense calls for on well being techniques, the diversions of immunization assets to COVID-19 vaccination, well being employee shortages and stay-at-home measures” in addition to conflicts, local weather change and vaccine hesitancy for the decline in vaccination charges, which now leaves the continent extra susceptible to extreme ailments. Final yr, 34 of the 54 international locations in Africa skilled outbreaks of measles, cholera and poliovirus. Based on the World Well being Group, Africa must vaccinate about 33 million youngsters by 2025 to get better from COVID-19’s “disruptive wake.”

Immunization charges additionally took successful in different international locations worldwide. The report discovered that about 67 million children missed out on routine immunizations, with vaccination protection falling throughout 112 international locations. Vaccine skepticism was additionally on the rise throughout this time interval, together with in South Korea, Japan, Papua New Guinea and Ghana, the place confidence fell by greater than a 3rd.

Elite athletes stay longer than most people, examine finds

A study published by the Worldwide Longevity Middle UK (ILC) on Wednesday discovered that elite athletes might stay as much as 5 years longer than the remainder of us, Yahoo News partner the Evening Standard reported.

Researchers checked out information from opponents on the Commonwealth Video games since 1930 and located important variations within the lifespan of medal winners versus the lifespan of individuals within the normal inhabitants born in the identical yr.

“We’ve lengthy identified that taking part in sport has quite a lot of well being advantages, however our analysis exhibits what a major influence top-level sport can have on the longevity of the world’s athletes,” mentioned Professor Les Mayhew, affiliate head of world analysis on the ILC.

Males’s longevity was boosted 29% in aquatics, 25% in monitor and 24% in indoor sports activities, which researchers mentioned interprets to between 4.5 and 5.3 additional years of life. Ladies’s longevity was boosted 22%, or 3.9 years, throughout all sports activities.

Another fascinating findings famous by the researchers: Wrestlers stay longer than boxers; long-distance runners’ longevity is marginally larger than that of short-distance runners; and biking was the one sport not related to longer lives.

New examine hyperlinks sugary drinks to early loss of life in sure folks

Based on a examine published by the Harvard T.H. Chan School of Public Health on Wednesday, excessive consumption of sugar-sweetened drinks akin to sodas, fruit punch and lemonade was related to an elevated danger of untimely loss of life and heart problems amongst folks with Sort 2 diabetes, Yahoo News partner USA Today reported.

The examine’s authors say that the report, which incorporates knowledge from 1980 to 2018, is among the many first large-scale research to look at hyperlinks between loss of life or illness and drinks amongst folks with Sort 2 diabetes.

“Drinks are an essential part of our weight loss plan, and the standard can fluctuate vastly,” lead writer Qi Solar mentioned in a press launch. “Folks dwelling with diabetes might particularly profit from ingesting wholesome drinks — however knowledge has been sparse. These findings assist fill in that information hole and will inform sufferers and their caregivers on weight loss plan and diabetes administration.”

The examine discovered that changing one sugar-sweetened beverage a day with an artificially sweetened drink was additionally related to an 8% decrease danger of “all-cause mortality” and a 15% decrease danger in heart problems mortality; changing a sugary drink with an unsweetened beverage like espresso, tea, water or low-fat cow’s milk was related to even better well being advantages.