Spring asthenia is a transient disorder caused by seasonal changes. It manifests mainly with a feeling of weakness, accompanied by loss of appetite, problems to fall asleep and loss of concentration. The effects of asthenia are usually mild and relapse in less than two weeks.
The arrival of spring, with more hours of daylight, is not always well received by those people most vulnerable to seasonal variations. Experts acknowledge that women are more prone to suffer from spring asthenia, without an explicit cause to determine. Spring is also the season of the year in which there are more allergic processes.