i STRONGLY reccommend seeing a doctor...the consequences are unhealthy
It can be because some sidewalk chalk contains lead.
Most chalk was formed in the Cretaceous period, from about 138 million to 65 million years ago.
The oldest known "bricks" were found in Turkey and are over 9,000 years old.
bricks
I am not sure why you are eating chalk in the first place. Eating items not usually considered food is called pica. This website is quite good. http://www.metrokc.gov/health/tsp/pica.htm I suggest a visit to a physician to ensure you are not suffering any medical condition which would cause a craving for this unusual substance. If nothing comes to light then some psychological insight might be helpful to help break the habit. http://www.istockphoto.com/file_thumbview_approve/684363/2/istockphoto_684363_halloween_candy_w_spider_ring.jpg I would figure that eating the multi colored pill type candy pictured here; would satisfy the chalk eating experience.
Chalk forms under relatively deep marine conditions from the gradual accumulation of minute calcite plates shed from microorganisms over millions of years. Therefore, chalk is very old indeed.
Chalk is a natural material composed primarily of calcium carbonate, which is formed from the remains of marine organisms over millions of years. It occurs in sedimentary rock layers and is often found in chalk cliffs. While synthetic chalk exists, such as that used for chalkboards or sports, traditional chalk is derived from natural geological processes.
You are lacking something in your diet to be eating bricks. Unfortunately, no one here can give you the help you need. You will need to see your doctor. If you cannot afford one, then apply at the local health and welfare office for some coupons. You are eating brick because of a Vitamin diffiency. Try taking some iron, plus like a "One a Day". Your wanting to eat bricks should go away. Mean while, try eating ice instead. I am a 17 year old girl and have been eating pumice stones for 5 years now. my teeth are in poor condition because i enjoy the gritting sensation of things like pumice and bricks. contrary to popular belief, pica is generally a behavioral problem rather than that of a mineral deficiency. last month after 5 years of being ashamed, i went to see my GP and a dentist, behavioral therapy has helped quite a lot but its a long road, i can get my teeth repaired and now im not so ashamed, i recommend you do the same. i wish you all the luck in the world.
Chris Chalk is an American actor known for his performances on television shows such as "Gotham" and "Perry Mason." He has also appeared in films like "12 Years a Slave" and "Detroit." Chalk has received praise for his talent and versatility as an actor.
Chalk is water soluble. Which means rain would destroy the building.
No, the Romans did not invent bricks, but they did invent concrete.
An abnormal craving to eat substances which are not normally consumed by humans is called Pica. Chalk is not harmful in the sense that it can poison you. Because of it's consistency, however residue is easily ingested into the lungs and could possibly cause pulmonary distress. A person who finds themselves wanting to ingest such things as chalk, talcum powder, etc. is suffering from a mineral deficiency. They should have a complete medical evaluation.