Examlex
Our universe is approximately 13.7 _________ years old.
Substance Abuse
The harmful or hazardous use of psychoactive substances, including alcohol and illicit drugs, leading to addiction or dependence.
Fertility Issues
Complications that hinder the ability of individuals or couples to conceive a child.
Severe Illness
A condition or disease that significantly impacts an individual's life, requiring extensive medical care or hospitalization.
Sun Exposure
The amount of time spent in the sunlight, having both positive effects, like vitamin D synthesis, and negative effects, such as the risk of skin cancer.
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