Blue Monday is a name given to the third Monday of January, said to be the most depressing day of the year for countries in the Northern Hemisphere.
This concept first appeared in a 2005 press release from holiday company Sky Travel, which claimed to have calculated the date using an equation.
where W=weather, D=debt, d=monthly salary, T=time since Christmas, Q=time since failing our new year’s resolutions, M=low motivational levels, and Na=the feeling of a need to take action. (wikipedia)
Although the equation has been debunked, Seasonal Affective Disorder is a real condition in which weather affects people’s moods. The Canadian Mental Health Association (CMHA) says some people “are vulnerable to a type of depression that follows a seasonal pattern,” while about 10 percent of people will experience mood disorders.
One way to help alleviate the symptoms of SAD is to use light therapy; sitting near “full-spectrum fluorescent lights with a brightness of 10,000 Lux” for 20-30 minutes every morning.
One can also include exercise, proper nutrition, sleep, drinking water, relaxation, being kind to yourself and, taking a vacation. You may also wish to consult with your health practitioner.