– Sep 24, 7:23 AM
Blacklegged ticks and their counterparts abroad used to be confined to certain climates, especially milder and humid temperate zones such as coastal New England. Now, they're present in places further north where they didn't use to appear.
Parkinson's disease is traditionally understood as a neurodegenerative disease that starts in the brain. While that might be true in some cases, growing evidence suggests this disorder is actually two diseases, with one variant that starts in the…