Significance of Shivarathiri

The fourteenth day of every lunar month or the day before the new moon is known as Shivratri. One that occurs during February-March is known as Maha Shivarathri. During that night we have more than usual cosmic energy available (Read below).

Is there any health benefit to ShivaRathri all night wakeup in addition to spritual benefit?
According to my thoughts, yes there are health benefit. All night wake-up once in a year adjusts your biological clock known as circadian rhythm. circadian rhythm is a natural, internal process that regulates the sleep–wake cycle and repeats on each rotation of the Earth roughly every 24 hours. These 24-hour rhythms are driven by a circadian clock, and they have been widely observed in all creatures including plants to bacteria level.

Unfortunately the earth clock of 24 hours is not exactly matching with biological clock of humans. Usually slightly longer or longer for some people (see reference below). Only way to adjust biological clock is by breaking the cycle. That means allnight wakeup is required once in an year.

Why this all night wakup to be done on shivarthiri day (during February- March)? During February-March, Equinox day occurs (where day and night time equals). And on the new moon day (fourteenth day of every lunar month) Sun and Moon are in same line with earth. This is the monthly shivarathri. On Maha Shivarthiri (Equinox period) Earth is closer to sun, in addition sun and moon are in align with Earth. So there is strong forces are played that will impact you significantly. This is the day, Hindus/Shaivaites celebrates as Shivarathri. Don't miss to get spiritual and health benefits by celebrating Maha Shivarathiri.

Reference: https://rarediseases.org/rare-diseases/non-24-hour-sleep-wake-disorder/