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A global analysis of range-shift records for 1,758 butterfly species—10% of known butterfly species—found that 80% had expanded their range and that 79% of all recorded range shifts were linked to climate change and extreme weather events. The new study, published in Nature Ecolo

Northwestern Medicine scientists have uncovered how a major Parkinson's disease gene disrupts the brain's most vulnerable dopamine-producing neurons before detectable neuronal loss. The study offers new clues for developing treatments that target the disease in its earliest stage

Nearly one in five teenagers has suicidal thoughts, and suicide is the second most common cause of death for that age group, according to the Centers for Disease Control and Prevention. Social bonds and social recognition, however, could reduce the risk of adolescent suicide, acc

Type 2 diabetes is associated with an increased risk of heart disease. Many people with type 2 diabetes are prescribed blood sugar-lowering medication to reduce this risk. However, not everyone takes their medication consistently, and that inconsistency could leave them more expo

A multistate outbreak of Salmonella infections has been linked to fresh jalapeño peppers imported from Sinaloa, Mexico, according to federal health officials.

Parkinson's disease affects more than 10 million people worldwide. The disease is characterized by the buildup of abnormal clumps of the protein alpha-synuclein inside brain cells, but scientists have long struggled to understand exactly how these toxic forms of the protein cause

A sweeping review of more than 350 studies suggests that the protein boom may be overselling what many people actually need. Eating less protein appears to improve metabolism, reduce inflammation and cellular damage, and activate pathways linked to healthier aging and longer life

Having normal blood pressure, no diabetes and not smoking between ages 45 and 65 is associated with nearly 13 additional years of dementia-free life, on average, a new study shows. Led by NYU Langone Health researchers, the work also found that, no matter how many risk factors th

A long-term brain study found that common risks such as smoking, high blood pressure, heart disease, and high blood lipids were strongly linked to damage associated with vascular dementia. The findings suggest that healthier lifestyle choices could help delay dementia by reducing

A preliminary, unblinded study has shown that people who took the antidepressant Prozac after suffering a traumatic injury reported fewer PTSD symptoms and lower levels of pain in the year after their injury.

Mental health conditions are more common among autistic individuals than in the general population, but knowledge about how physical and mental health interact over time has been limited. In the new study, researchers analyzed data from nearly 2 million individuals born in Sweden

As temperatures on Earth continue to rise, some researchers have been trying to understand how climate change influences people's physical and mental health. Some past studies have found an association between warmer weather and the incidence of suicide and homicide. However, onl