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.
An individualâs social environment, including the social relationships an individual makes within it, can also have a profound impact on the quality of parenting, which in turn affects a childâs health development and future achievements.or decades, the medical community has understood the important influence an individualâs environment has on their health. This has led to many health promotion interventions which focus on improving health by improving the environment of a community.