The Age Discrimination Act of 1975 prohibits discrimination on the basis of age in federally funded programs and activities. This includes discrimination in employment, housing, credit, and health care.

The Affordable Care Act requires health insurance plans to cover preventive services for young adults without cost sharing. These services include well-child visits, immunizations, and screenings for mental health conditions.

The Affordable Care Act allows young adults to stay on their parents' health insurance plan until they are 26 years old. This provision has helped to increase the number of young adults who have health insurance.

The Adolescent Family Life Act of 1981 provides funding for comprehensive sex education programs in schools. These programs teach young people about sexual health, contraception, and sexually transmitted infections.

The Family Smoking Prevention and Tobacco Control Act of 2009 prohibits the sale of tobacco products to minors. This law also gives the Food and Drug Administration the authority to regulate tobacco products.

The Children's Mental Health Services Improvement Act of 2000 requires states to provide mental health services to children and adolescents. This law also provides funding for mental health research and training.

The Substance Abuse and Mental Health Services Administration provides funding for substance abuse prevention and treatment programs for young adults. These programs include school-based prevention programs, outpatient treatment programs, and residential treatment programs.

The Children's Health Insurance Program provides health insurance to children from low-income families. This program is jointly funded by the federal government and the states.

The Elementary and Secondary Education Act of 1965 provides funding for school-based health centers. These centers provide a variety of health services to students, including primary care, mental health care, and dental care.

The Community Health Centers Act of 1965 provides funding for community health centers. These centers provide a variety of health services to low-income and uninsured people, including primary care, mental health care, and dental care.

The National Health Service Corps Act of 1970 provides funding for the National Health Service Corps. This program provides scholarships and loan repayment assistance to health care professionals who agree to work in underserved areas.

The Ryan White HIV/AIDS Program provides funding for a variety of HIV/AIDS-related services, including medical care, housing assistance, and food assistance. This program is funded by the federal government and is administered by the states.

The Title X Family Planning Program provides funding for a variety of family planning services, including contraception, counseling, and STD testing. This program is funded by the federal government and is administered by the states.

The Maternal and Child Health Block Grant provides funding for a variety of maternal and child health services, including prenatal care, well-child visits, and immunizations. This program is funded by the federal government and is administered by the states.

The Children with Special Health Care Needs Program provides funding for a variety of services for children with special health care needs, including medical care, therapy, and assistive technology. This program is funded by the federal government and is administered by the states.