07:30 AM Saturday 06 April 2024
A recent study by researchers from Imperial College London showed that fatal heart rhythm disturbances, known as ventricular arrhythmias, are closely linked to a rise in the stress hormone cortisol in the morning.
The study, published in the journal Heart, indicates that cortisol causes electrical changes in heart cells, making them more vulnerable to dangerous arrhythmias, according to the Medical Express website.
The researchers found that injecting mice with a drug that blocks cortisol receptors prevented these morning electrical changes and led to a significant reduction in the incidence of arrhythmia.
These results are an important discovery for understanding the mechanism of occurrence of arrhythmia in the morning.
It opens the door to new possibilities for treating fatal heart rhythm disorders.
Dr Alicia D’Souza, from the National Heart and Lung Institute (HNLI) and lead author of the study, said: ‘Our study shows that our hearts are not static organs, but rather their functions change throughout the day.
Because of circadian rhythms.
“This makes them more susceptible to irregular heartbeats early in the morning.”
Professor James Leeper, associate medical director at the British Heart Foundation, said: “Ventricular arrhythmia
It can be fatal if not treated.
This study provides new insights into the mechanisms of its occurrence.
“This may help us develop more effective treatments to prevent it.”
2024-04-06 05:30:00
#notice #frequent #increase #heart #rate #early #morning
