Halloween Day is on 31st October every year!
I never celebrated Halloween when I was young because I lived in Asia. However, it's a very popular day that's celebrated in North America and Europe. People, usually kids dress up in costumes and go out in the evening visiting houses in the neighbourhood, asking for candy treats. But sometimes, they get tricked! They call this "Trick-O-Treating."
If someone does get tricked, for example, getting surprised by a person dressed up in a scary costume, they might get a fright and feel scared. The Boo Card below shows the molecule noradrenaline or norepinephrine. It's a neurotransmitter in the human body that is released whenever we feel fear or anxiety. It also increases our heart rate and blood pressure.
The houses in the neighbourhood also tend to be decorated and pumpkins are usually carved. If you light a candle inside the carved pumpkin, it becomes a sort of lamp or lantern in the night, which is why they call it a "Jack-O-Lantern." Here are some pumpkins I've carved in the past.
Do you celebrate Halloween where you are? How do you celebrate? Let me know in the comments below.