Bright Light exposure, especially in the morning, helps reset and stabilize the circadian rhythm of the body, essential for maintaining a consistent and healthy sleep cycle.

BLT is a common and effective treatment for SAD, a type of depression that occurs at a specific time of the year, usually in winter when natural sunlight exposure is reduced.

BLT naturally harmonises a traveller’s body clock with their current time zone while the effects of night shift working, proven to disrupt cortisol and melatonin levels, can also be alleviated.

When days are shorter and darker we all experience reduced serotonin levels and increased melatonin secretion in our bodies. This makes us feel lethargic. BLT increases serotonin and decreases melatonin, reversing the effects of darkness.