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15:11, April 24 Zombie deer disease possibly linked to hunters’ deaths
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12:27, April 23 Appetite: Scientists found out the secret to the appeal of large portions of fast food
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10:33, April 23 Scientists test new approach to fighting viruses
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08:38, April 23 Ketamine may help with postpartum depression
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22:12, April 22 Unhealthy amount of sugar found in baby food products of a well-known brand
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19:41, April 22 Air pollution puts health of more than 1.6 billion workers globally at risk
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17:25, April 22 Scientists found baked goods and lack of sleep to be more dangerous than alcohol
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16:02, April 22 342 cases of measles recorded in Armenia so far in 2024
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15:29, April 22 BrainStimulation: electrical brain stimulation alleviates anxiety and depression in the elderly
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08:27, April 22 Cognitively stimulating jobs in midlife could lower dementia risk in old age, study finds
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20:37, April 21 Environmental Health Perspectives: Microplastics ingested with food and water can spread from the gut to the brain
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22:41, April 20 Scientists develop new method to safely stimulate immune cells to fight cancer
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20:46, April 20 Blood test can determine who is at risk of developing multiple sclerosis - scientists
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18:36, April 20 Next pandemic likely to be triggered by flu - scientists
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12:16, April 19 Scientists grow human mini-lungs in lab
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Exercise hormone may help combat Alzheimer's, research suggests
A hormone released during exercise may protect the brain against Alzheimer’s disease, research suggests.
Irisin is a messenger protein generated by muscle tissue that is carried around the body in the bloodstream.
The new evidence indicates that it may be behind the known positive effects on mental performance of taking exercise.
US and Brazilian scientists found lower levels of the hormone in the brains of Alzheimer’s patients compared with healthy individuals. The same was true for the precursor protein from which irisin is derived, FNDC5.
In tests on genetically engineered mice, the scientists induced learning and memory deficits by cutting out irisin.
They were able to reverse these effects by restoring the hormone.
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