Energy cost of 'mining' bitcoin more than twice that of copper or gold: New research reveals that cryptocurrencies require far more electricity per-dollar than it takes to mine most real metals.
Adults who sleep just 6 hours per night, as opposed to 8, may have a higher chance of being dehydrated, according to a new study, which suggests that those who don’t feel well after a night of poor sleep may want to consider dehydration, not simply poor sleep, as a cause, and drink more water..
