One of the neurotransmitters (chemical messengers) that contributes to mood and happiness is called "serotonin". When levels of this "happy hormone" are low in your system because you may be dealing with chronic stress or have poor habits, problems can arise with many bodily functions. if you're not sleeping well or eating right for example that can only lead to more symptoms of unhappiness like anxiety and anger. Take these 6 tips and boost your serotonin levels! Your brain will thank you