Persistent short nighttime sleep duration is associated with a greater post-COVID risk in fully mRNA-vaccinated individuals.
Xue P., Merikanto I., Chung F., Morin CM., Espie C., Bjorvatn B., Cedernaes J., Landtblom A-M., Penzel T., De Gennaro L., Holzinger B., Matsui K., Hrubos-Strøm H., Korman M., Leger D., Mota-Rolim S., Bolstad CJ., Nadorff M., Plazzi G., Reis C., Chan RNY., Wing YK., Yordanova J., Bjelajac AK., Inoue Y., Partinen M., Dauvilliers Y., Benedict C.
Short nighttime sleep duration impairs the immune response to virus vaccination, and long nighttime sleep duration is associated with poor health status. Thus, we hypothesized that short (<6 h) and long (>9 h) nighttime sleepers have a higher post-COVID risk than normal nighttime sleepers, despite two doses of mRNA vaccine (which has previously been linked to lower odds of long-lasting COVID-19 symptoms). Post-COVID was defined as experiencing at least one core COVID-19 symptom for at least three months (e.g., shortness of breath). Multivariate logistic regression adjusting for age, sex, BMI, and other factors showed in 9717 respondents (age span 18-99) that two mRNA vaccinations lowered the risk of suffering from post-COVID by about 21% (p