Mental health professionals are now warning this could cause summer seasonal affective disorder (SAD), a type of depression related to the weather. WATCH the ABC News Live Stream Here: youtube.com/watch?v=w_Ma8oQLmSM SUBSCRIBE to ABC NEWS: bit.ly/2vZb6yP Watch More on abcnews.go.com LIKE ABC News on FACEBOOK facebook.com/abcnews FOLLOW ABC News on TWITTER: twitter.com/abc #Heat #MentalHealth #SeasonalAffectiveDisorder #Depression #ABCNLUpdate