I understand that some paints can cause health problems. Synthetic paints usually contain volatile solvents such as xylene, toluene, ketones etc.
Some paints also contain mould inhibitors.
Paints may appear to dry within a few hours but in reality they can outgas chemicals for days, months, or even longer. Exposure may cause headaches and nausea and some solvents can affect the respiratory tract and the central nervous system. Use natural plant-based products or reduced solvent products.