FCH-Católica Assistant Professor, Cátia Reis, conducted a study, published on March 21st, on how Daylight-Saving Time (DST) affects patients with delayed sleep-wake phase disorder, a condition characterized by an inability to fall asleep and wake up at times considered acceptable by most people.

This study analyzed 162 patients from a sleep medicine center in Lisbon diagnosed with this condition. Half of these patients were on DST and the other half were on Standard Time (ST).

The researchers concluded that the impact of DST on these patients is particularly problematic once it ends up worsening their sleep debt.

You can read the full article here.