What is the root cause of pathological lying?

Absolutely—just don't expect it to happen overnight. Many pathological liars become hooked on lying at a very young age, as it helps them achieve a certain outcome or manifest their...

It could be. Some people with depression might lie and deny having depression, or they might lie because their emotions make them compulsive liars.

Root planing smoothes the root surfaces, prevents additional tartar and bacteria from accumulating, and eliminates bacterial byproducts that cause inflammation and delay gum healing.

They will look unimpressed say things like "uh huh" "and?" Whatever you do, don't react to that and keep acting natural.

Vampires don't exist, so he/she is definitely lying. Remind them that vampires can't go outside in sunlight, can fly, drink blood, etc. Ask him/her to prove that they're a vampire....

Don't worry about them. If it's really bad and making you very uncomfortable at school, you could change schools, but I personally think that the best way is to ignore...

Communication is key! You need to vocalize exactly how you're feeling after the breach of trust—that you're hurt, sad, and angry. If you have questions about why the infidelity occurred,...

If you don't want to tell the truth, at least tell the same lie to everyone. Keep your lies non-specific. Say "I went out", rather than "I went to watch...

Go to a mirror and say something as usual. Pay close attention to your face. This is the face you will be trying to keep. Now say a lie. You...

You should take her to the vet ASAP. She could have a respiratory infection. The vet can evaluate her and inform you of your treatment options.