Answer: The given statement is True.
Heredity represents the transfer of traits ( that are depicted by genes) from one generation to the next generation. It has an impact on personal heath as the health condition of an individual is goverend by the protein products that control the growth and development of the organism.
More than 4000 diseases are caused due to genetic variants.
Apart from this, exposure of individual to the environmental conditions is also important for personal health.
For instance, the presence of hazardous substances in air, water, and soil that cause pollution directly have harmful impact on the health of individuals.