Botox can limit the expression of emotions, according to a new study.

The lead study author, Helen Collier, said that reality TV shows and celebrity culture are pushing young people to idealize the "inexpressive frozen face." She warns that "frozen faces" can stop youngsters from learning how to express their emotions.

"Emotions such as empathy and sympathy help us to survive and grow into confident and communicative adults. If you wipe those expressions out, it might stunt emotional and social development among youngsters," Collier said, reports BBC.

Collier advises therapists help youngster to improve their confidence rather than choosing Botox.

"Though most of the effects of the toxin are temporary, research suggests the muscles don't fully recover from injections," Collier said. "We really need to understand the consequences of starting treatments too soon."

Botox is a drug made from a neurotoxin botulinum toxin produced by a particular bacterium. Botulinum toxin is one of the most poisonous substances, and scientists state that a single gram can prove fatal for as many as one million people and a couple of pounds could kill every human on earth, according to Medical News Today.

Despite all this, it is in huge demand and is widely used to smooth wrinkles and lines due to aging. It is also used to treat various medical conditions such as eye squints, migraines, excess sweating and leaky bladders. 

There are a number of harmful effects associated with Botox. Drugs.com states that common side effects associated with Botox are muscle weakness near injected area, bruising, bleeding, pain, redness or swelling. Moreover, it also causes headache, muscle stiffness, neck or back pain, pain in your arms or legs. There are cold symptoms such as stuffy nose, sneezing, cough, sore throat and flu symptoms too.