Seasonal emotional upheaval: Why women with brown eyes are at risk

Two new studies suggest that sex and eye color affect the risk of seasonal affective disorder. The researchers also provided some interesting explanations on why.
Establish a structure
NEW YORK (Reuters Health) – Women with brown eyes may face seasonal depression, a new study shows.
Seasonal affective disorder (SAD), a psychological state, is often characterized by feelings of desperation and extreme sadness that occur during the fall and winter.

A form of depression, it is estimated that SAD affects 5 percent of the US population. UU Of these, it is believed that women are at greater risk.

In fact, it is believed that 4 out of 5 people living with the condition are women.

Previously, the researchers found that the strong prevalence of SAD among women is independent of social factors or lifestyle, suggesting that there are biological biological differences that are responsible for preparation.

Recent research confirms that women are more prone to the condition, but add an interesting element to the mix: the color of the eyes.

In addition, the new studies provide new and disturbing explanations about why sex and eye color can affect the risk of SAD.

The Group presented the results at the annual conference of the British Psychological Society in Nottingham, United Kingdom, by Lance Workman, a professor at the University of South Wales, and also in the United Kingdom.

Why the blue eye keeps the penumbra
The first study that will be presented by Professor Trabajador – entitled “Blue eyes keeps the penumbra: the relationship between the SAD emotions, inherent, and the color of the eyes” – that interviewed 175 students of the University of South Wales and the American Girne University in the north of Cyprus.

The results of the questionnaires showed that participants with brown eyes were significantly more likely to have mood swings than those with blue eyes.

Professor Wurkman has an interesting explanation for this. “We know that light entering the brain causes lower levels of melatonin,” he says.

“As the blue eye allows more light in the brain, this can lead to a greater reduction in melatonin during the day and that is why people with lighter eyes have less chance of SAD.”

Professor Lance Workman
“Blue-eyed individuals appear to have some degree of flexibility with respect to SAD,” the authors explain.

“This,” they add, “may be implied that the blue eye mutation has been selected as a precautionary measure, while the migration of the SAD subgroups of people to the northern latitudes.”

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