Sexual harassment includes unwelcome sexual conduct that affects employment. It includes quid pro quo harassment, where favors are demanded to avoid consequences, and hostile work environments. Studies show 40-75% of women and 13-31% of men experience harassment. Employers are liable for harassment and must prevent it through clear policies, training, and responding promptly to complaints. Harassment has negative consequences for victims' health, careers, and organizations through costs of lawsuits, replacement of employees, and lost productivity.