In my country, 40% of population are active in gambling.
thats good percent mate,meaning half of your neighbors are Gamblers?cool mate 
Gambling nervousness affects health in a negative way, remember that.
What does it mean about Nervousness ?is that the feeling of momentum whenever we are in gambling table?when our heart is Pumping fast because of our bets?but yeah i think it can affect our Health.
Gambling can cause health problems when it becomes an addiction.
People are getting anxious when being addicted.
And apart from that, when you lose a lot of money, you start thinking about the difficult part of the life that has come and you might end up thinking about finding ways (usually bad ones) to overcome this.
Addicted gamblers dont stop thinking about gambling even in their sleep that is why they cannot think rightful because of the effect.People are getting anxious when being addicted.
And apart from that, when you lose a lot of money, you start thinking about the difficult part of the life that has come and you might end up thinking about finding ways (usually bad ones) to overcome this.