Changing weather may affect our health

It is true that we change with weather at least regarding health and state of mind. We all are influenced more or less by temperature variations.

Arthritis symptoms worsen 

Human body is equipped with sensory receptors that sense external temperature variations as well as atmospheric pressure changes. As these receptors are highly sensible to climate changes they can influence pain sensation. Namely when weather changes, pain rising from already existing illnesses worsens. That is why rheumatics are natural thermometers and barometers. Person suffering from arthrosis, rheumatoid arthritis, ankylosing spondylitis experience greater articular pain.
Increased heart arrest risk
During winter, approximately half of hypertension persons fatalities are caused by heart arrest due the blood vessels contractions when exposed to cold. In the case of arteriosclerosis sufferings, blood vessel contraction can lead to occlusion. When temperatures lower above 4 degree Celsius (39F) risk of cardiac problems rises with 115% while high temperature variations increase the risk with 140%
Asthma attacks are more frequent
Strong wind has a negative effect upon asthma sufferings. Cold an dry air irritates the already sensible mucosa, leading to violent spasms. Muscles that surround the bronchi stiffen limiting air flow and creating respiratory difficulties.

source: healthyfeeds.com