It's also IR. They found that when people do an IR Sauna in the Winter they have a pretty significant reduction in mortality, but it disappears in the summer. Of course this was an old study likely when people got enough sun in the summer.
You also need IR to develop your eyes correctly. All the kids who need glasses isn't from watching the TV itself or computer screen or from reading books in low light. It's from not getting an IR dosage. In the 70s they knew this and there was a conversation back then to adding IR to lighting for vision health. Yes, the incandescent bulbs in the 70s weren't emitting enough IR. Now with efficient bulbs we get even less.
Did I post the IR sauna I built? It's very cheap to do with a $100 sweat box and some $8 bulbs, and $5 light fixtures.
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It's also IR. They found that when people do an IR Sauna in the Winter they have a pretty significant reduction in mortality, but it disappears in the summer. Of course this was an old study likely when people got enough sun in the summer.
You also need IR to develop your eyes correctly. All the kids who need glasses isn't from watching the TV itself or computer screen or from reading books in low light. It's from not getting an IR dosage. In the 70s they knew this and there was a conversation back then to adding IR to lighting for vision health. Yes, the incandescent bulbs in the 70s weren't emitting enough IR. Now with efficient bulbs we get even less.
Did I post the IR sauna I built? It's very cheap to do with a $100 sweat box and some $8 bulbs, and $5 light fixtures.