Medical Notes this week…

Death rates for most major health conditions have been in decline, but chronic kidney disease is a big exception, according to a study in the journal JAMA Open. Researchers say that deaths due to chronic kidney disease have increased overall by 58 percent over the last 15 years… and among people under 55, who previously suffered little chronic kidney disease, death rates are sharply up as well. Scientists blame high-sugar, high-salt foods and the increase in health problems such as high blood pressure and type two diabetes… which can trigger kidney disease.

Some people say having a tough childhood makes kids grow up fast. But a new study in the journal Biological Psychiatry finds that it also ages children prematurely. Researchers analyzed DNA of children age eight to 16 who had been exposed to violence, neglect, or emotional abuse… and found that on a cellular level, they were older than similar children living in a more stable environment. Those changes are reflected in the average age of puberty… which is lower among children growing up in a tough environment.

And finally… if you’re a night owl, your health may suffer for it. Previous studies have linked being a night owl to high blood pressure and cardiovascular disease… and now a study in the journal Chronobiology International has added up the effect—night owls may have a 10 percent higher risk of early death. Researchers admit they don’t know why a person’s chronotype has such an effect.

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