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<td><span style="font-family:Helvetica, sans-serif; font-size:20px;font-weight:bold;">Psychology Research News -- ScienceDaily</span></td>
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<td><a href="https://www.sciencedaily.com/releases/2026/01/260115022811.htm" style="font-family:Helvetica, sans-serif; letter-spacing:-1px;margin:0;padding:0 0 2px;font-weight: bold;font-size: 19px;line-height: 20px;color:#222;">One protein may decide whether brain chemistry heals or harms</a>
<div style="font-family:Helvetica, sans-serif; text-align:left;color:#999;font-size:11px;font-weight:bold;line-height:15px;">Jan 15th 2026, 23:01</div>
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<p>Tryptophan does far more than help us sleep—it fuels brain chemistry, energy production, and mood-regulating neurotransmitters. But as the brain ages or develops neurological disease, this delicate system goes awry, pushing tryptophan toward harmful byproducts linked to memory loss, mood changes, and sleep problems.</p>
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<p><strong>Forwarded by:<br />
Michael Reeder LCPC<br />
Baltimore, MD</strong></p>
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