As of 2019, a serious lung disease called EVALI has been identified, an English acronym meaning 'lung damage associated with the use of e-cigarettes or vaping products' It is an inflammatory condition that can range from mild respiratory symptoms to full-blown respiratory failure, requiring hospitalisation
Some non-EU countries adopt similar standards ( Albania, Bosnia & Herzegovina, Georgia, Moldova, North Macedonia )
Light: Direct sunlight can degrade cannabinoids and terpenes, so keep your pre-rolls in a dark place or in opaque containers
Nicotine and tobacco play strong roles in causing several diseases like cancer, bronchitis, rotting teeth, damage to the heart and lungs, etc