Parkinson’s may begin decades earlier — and your immune system might know first

Misbehaving T cells light up long before Parkinson’s symptoms show, zeroing in on vulnerable brain proteins. Their early surge could double as an alarm bell and a target for stop-it-early treatments.

​Misbehaving T cells light up long before Parkinson’s symptoms show, zeroing in on vulnerable brain proteins. Their early surge could double as an alarm bell and a target for stop-it-early treatments. Misbehaving T cells light up long before Parkinson’s symptoms show, zeroing in on vulnerable brain proteins. Their early surge could double as an alarm bell and a target for stop-it-early treatments.