A contributor to Time Magazine explains his aversion to Daylight Saving Time:
In defense of summer dyspeptics like me, there may be some brain chemistry at work here. Seasonal affective disorder (SAD) — the gloom and even depression that many people experience during the darker days of fall and winter — is a common affliction, with incidence rates as high as 9.7% in snowy New Hampshire, and 1.4% even in Florida. The condition is generally attributed to reduced natural light, which disrupts circadian rhythms and hormone balance.
But there is reverse SAD too, which occurs with only one-tenth the frequency of regular SAD, causing the same gloom not as days shorten but as they lengthen. In this case, the problem is thought to be a disruption in the brain’s production of melatonin — a hormone that influences sleep cycles and can be secreted in greater and lesser quantities partly in reaction to light levels.
Alternatively, some researchers believe reverse SAD might simply be a result of the fact that it’s just too bloody hard to get to sleep at night when it’s light out so late, and then to wake up on time in the morning, when Daylight Saving Time performs its other little trick — with the sun actually seeming to rise later, giving you 6 a.m. light levels when your alarm clock says it’s 7 a.m. and time to get up.
Read the rest at www.time.com