Is smelling too many flowers harmful to human body?

Harmful Chinese rose: The rich original fragrance of Chinese rose will make allergic people feel chest tightness, discomfort and breathlessness.

Orchid: smelling incense for too long will make people overexcited and cause insomnia.

Oleander: The poisonous gas it emits can make people depressed and asthmatic, and easily lead to tracheitis and pneumonia. Frequent smelling will make people's intelligence decline.

Bauhinia: Long-term exposure to pollen can induce asthma.

Cordate telosma: It can emit particles that strongly stimulate the sense of smell at night. Patients with hypertension and heart disease should not smell it for a long time, otherwise it will aggravate their condition.

Lily: Smelling its fragrance for a long time will make people's central nervous system excessively excited and cause insomnia.

Hydrangea: If people are exposed to the particles it emits for a long time, they will have skin allergies or itching.

Pine and cypress: The smell of pine and cypress flowers and trees can stimulate people's stomach. Long-term odor will not only affect people's appetite, but also make pregnant women upset and nauseous. Source: Bihai Yinsha Comprehensive.