If a cat is heavily infested with ticks, the parasites can drink enough blood to cause anemia (severe blood loss). Additionally, if your cat brings ticks into the house, your family members could be exposed to Lyme disease and other diseases that ticks can transmit if they bite people. Ticks can transmit a disease called cytauxzoonosis (pronounced sight-oh-zo-uh-nosis) to cats. 1  This disease causes serious illness and even death in infected cats. Cytauxzoonosis is actually caused by two parasites.
Genetic changes in human populations occur too slowly to be responsible for the obesity epidemic. Nevertheless, the variation in how people respond to the environment that promotes physical inactivity and intake of high-calorie foods suggests that genes do play a role in the development of obesity.
Obesity affects the respiratory system because when your BMI rises and you gain weight, it is associated with a decrease in the lungs. Also, obesity has been linked to an increase risk of Pneumonia in men and an increase of Asthma.