What is seasonal affective disorder? What to do when Texas heat shakes our mental health

While the temperatures have taken a dip this week with unseasonably "cool" days (i.e. upper 80s) and actual rain, summer in Austin can mean day after day of staying inside during daylight hours to avoid highs in the 90s and even 100s. Austin already has had 14 days of triple digit highs. Add some humidity, and the heat of the day can become unbearable.