An early version of the washing machine was introduced in the 1850s and has since evolved from manual labor gear devices to high tech machines that assistance dogs are able to load and start. Clothes used to be washed by pounding them on rocks or washing away dirt in...

Seasonal affective disorder (SAD) is a form of depression that occurs seasonally, typically ramping up in the fall and winter months and disappearing come spring1 2 3. It's been estimated4 that as many as 20% of Americans are affected by SAD each winter. What...