Columnist Scott LaFee covers the educational and quirky health news of the week.
Here’s something to noodle. There’s an urgent need for new, more effective antidepressant medications. Before those drugs can be used in humans, they’re often tested in animal models, specifically mice.
Synchron, a neurotechnology startup, reports that implanting its Stentrode device, which allows users to control personal devices using their thoughts, in six patients with neurodegenerative diseases, did not produce dangerous side effects. The next step is to conduct trials to prove the technology’s clinical significance to the FDA. The company also recently demonstrated that people with its implant can connect with consumer technologies such as Amazon’s Alexa, OpenAI’s ChatGPT and Apple’s mixed-reality headset.At a mere 4 microns, sperm are the human body’s smallest cells, 20 times smaller than a human egg, which is the body’s biggest cell. A micron is 0.000039ths of an inch or one millionth of a meter.
The current RDA varies by age, pregnancy and breastfeeding status. For men age 19 and older, it’s 90 milligrams per day. Women 19 and older: 75 mg per day. Pregnant women: 85 mg per day. Breastfeeding women: 120 mg per day.
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