内容摘要：Other schools face the loss of federal funding and their ability to enroll international students if they don’t agree to the Trump administration’s shifting demands. But Harvard, which was founded more than a century before the nation itself, has taken the lead in defying the White House in court and is paying a heavy price.

Other schools face the loss of federal funding and their ability to enroll international students if they don’t agree to the Trump administration’s shifting demands. But Harvard, which was founded more than a century before the nation itself, has taken the lead in defying the White House in court and is paying a heavy price.

The brain has a master clock that is set by exposure to sunlight and darkness. This circadian rhythm is a roughly 24-hour cycle that determines when we become sleepy and when we’re more alert. The patterns change with age, one reason that early-to-rise youngsters evolve into hard-to-wake teens.Morning light resets the rhythm. By evening, levels of a hormone called melatonin begin to surge, triggering drowsiness. Too much light in the evening — that extra hour from daylight saving time — delays that surge and the cycle gets out of sync.

Sleep deprivation is linked to heart disease, cognitive decline, obesity and numerous other problems. And that circadian clock affects more than sleep, also influencing things like heart rate, blood pressure, stress hormones and metabolism.Fatal car crashes temporarily jump the first few days after the spring time change, according to a study of U.S. traffic fatalities. The risk was highest in the morning, and researchers attributed it to sleep deprivation.Then there’s the cardiac connection. The American Heart Association points to studies that suggest an uptick in heart attacks on the Monday after daylight saving time begins, and in strokes for two days afterward.

Doctors already know that heart attacks, especially severe ones, are a bit more common on Mondays generally — and in the morning, when blood is more clot-prone.Researchers don’t know why the time change would add to that Monday connection but it’s possible the abrupt circadian disruption exacerbates factors such as high blood pressure in people already at risk.

Gradually shift bedtimes about 15 or 20 minutes earlier for several nights before the time change, and rise earlier the next morning, too. Go outside for early morning sunshine that first week of daylight saving time, another way to help reset your body’s internal clock. Moving up daily routines, like dinner time or when you exercise, also may help cue your body to start adapting, sleep experts advise.

Afternoon naps and caffeine as well as evening light from phones and other electronic devices can make adjusting to an earlier bedtime even harder.Healthy Start is a federal program that has worked with vulnerable populations for decades. This year, the federal government gave out $105 million in grants to fund local projects. Officials say it’s essential part of the Biden administration’s

It “manages women through their pregnancy,” said Corrina Jackson, who heads up a local Healthy Start project in Tulsa, Oklahoma. “You try to get them in their first trimester and then work with them to delivery day, and then we also work with the babies to make sure that they reach their milestones.”Healthy Start programs coordinate prenatal and postpartum care, as well as educate moms on health and parenting; provide referrals to services for things like depression or domestic violence; and help with transportation.

In Jackson’s more than 25-year tenure in Tulsa, she said there have been no maternal deaths among clients. The maternal death rate for Oklahoma as a whole, meanwhile, is currently higher than the national average.California, by contrast, has the lowest maternal mortality in the nation at 10.5 per 100,000 live births. That wasn’t the case before it created a “maternal quality care collaborative” in 2006.