by Judith E. Courtney, MPS, MA, LPC. Simply put, adolescence is tough. Hormonal fluctuations, physical changes, school stresses, and relationship challenges are just a few of the hurdles teens face on a given day. So, it’s completely normal for teens’ emotions to run the gamut, from the highest highs to the lowest lows. But when a teen’s mood seems unable to shift out of those lows, it could be a warning sign of suicidal behavior — and a sign that it’s time for friends and family to get involved. Knowing the signs and knowing that people are there to help can make all the difference in the world to a teen in need.