Using gold, silicone and heart cells from a rat, scientists have made a tiny artificial stingray. The engineering involved in propelling it could help make a heart that's more than a mechanical pump.
The food industry has long marketed highly processed products to kids with characters like Tony the Tiger. But similar tactics can also work to sway school kids to eat more vegetables, a study finds.
"We have this idea that if we are just cruel enough and mean enough ... to people with addiction, that they will suddenly wake up and stop, and that is not the case," journalist Maia Szalavitz says.
Good intentions are great, but they'll only take you so far. There are some research-backed techniques you can use to increase your odds of following through on living better, however.
Researchers found that in states with medical marijuana laws on the books, the number of prescriptions dropped for drugs to treat anxiety, depression, nausea, pain, seizures and sleep disorders.