What are the key differences between a louse and a bed bug in terms of appearance, behavior, and potential impact on human health?

Lice are small insects that live on the scalp and body, while bed bugs are larger insects that typically hide in bedding and furniture. Lice are more mobile and can move quickly through hair, while bed bugs are slower and tend to stay in one place. Lice can cause itching and irritation, while bed bugs can leave bites that may cause allergic reactions or skin infections. Both pests can be a nuisance, but bed bugs are typically harder to get rid of and can infest entire homes.