The term "negative effects" refers to any undesirable or adverse consequences that result from a particular action, event, situation or phenomenon. It can refer to various aspects such as physical, emotional, social, economic and environmental impacts which may have an unfavorable outcome on individuals, communities or the society at large. Negative effects could range from mild discomfort to severe consequences that cause harm or damage to people, property or the environment. The extent of negative effects can vary depending on various factors such as severity, duration and magnitude of the event or action causing them.