is cigarette smoke a solution Smoking: Effects, Risks, Diseases, Quitting & Solutions Mayo Clinic Q and A:

Understanding the spliff vs joint distinction helps consumers make informed choices about their preferred consumption method

For infants, secondhand smoke causes many health problems, including birth defects, and even SDIS (Sudden Infant Death Syndrome) which refers to the sudden, unexplained, unexpected death of an infant in the first year of life. Nobody wants secondhand smoking in the house

What matters is the pattern: several signs together are something to investigate

Hesslinger B, Thiel T, Tebartz van Elst L, Hennig J, Ebert D (May2001) Attention-deficit disorder in adults with or without hyperactivity: Where is the difference