Q This is kataru prasanth aged 22 recently I have observed a white hair on my head and want to know the reason behind this? How to prevent this problem? tell me which vitamins or proteins deficiency causes and what to eat for improvement?

Exact causes for premature greying of hair is not known. Some studies suggest that it can be due to genetics. Also deficiency of vit B12 or thyroid disorder can cause early greying of hair. In such cases treating the cause will help preventing further greying of hair. As such there are no specific medicine to reverse or control greying of hair. You can use several hair colouring products to conceal white hair.

Q How contraceptive implant works?

Contraceptive implants contains synthetic version of the hormone progesterone which is released at slow rate. The released hormone provides contraception in following ways: stops ovulation, prevents sperms form meeting the egg by making cervical mucus thick and prevents implantation by making the lining of the uterus thin.rnrn 

Q Why does your babies tongue keep thrusting out?

Its because of tongue-thrust reflex. It is also called as reverse swallow or immature swallow. This tongue-thrust reflex can make early feedings a bit of a challenge. Try to get your baby to relax during feedings and dont push him to eat more than hes inclined to. If hes bottle-fed, make sure the hole in the nipple is the right size making it easy for him to suck milk.

Q How fast are calories absorbed?

The calories absorption depends on the physical and mental well being of the person. It also depends on the age, sex, occupation, environmental factors etc. It varies from person to person. Some one doing heavy physical work spend the calories early than other one who does relax work in the office.

Q What are the symptoms of kidney failure?

Symptoms may vary form person to person. Usually kidney failure is asymptomatic in early stage but as disease progresses symptoms become prominent. Sign and symptoms include nausea, vomiting, loss of appetite, fatigue, weakness, changes in urine output, fluid retention, swelling over ankles and feet, shortness of breath, persistent itching, hiccups, high blood pressure, difficult concentration, abnormal heart rhythms, sleep problems. If left untreated life threatening circumstances may develop.

Q What can you tell me about Borderline Personality Disorder?

Borderline personality disorder (BPD) is a Mental Health disorder that generates significant emotional instability. This can lead to a variety of other stressful mental and behavioral problems. When you have borderline personality disorder, you often have an insecure sense of who you are. Your self-image, self-identity or sense of self often rapidly changes. You may view yourself as evil or bad, and sometimes you may feel as if you dont exist at all. An unstable self-image often leads to frequent changes in jobs, friendships, goals and values. This is because people with borderline personality disorder often have difficulty accepting gray areas; things seem to be either black or white. The common symptom of borderline personality disorder are overwhelming feelings of distress, anxiety, worthlessness or anger, difficulty managing such feelings without self-harming, for example by abusing drugs and alcohol or taking overdoses, difficulty maintaining stable and close relationships, sometimes, periods of loss of contact with reality, in some cases, threats of harm to others. Treatment may involve a range of individual and group psychological therapies (psychotherapy) carried out by trained professionals.

Q Are condoms 100% effective?

No condom can be effective in preventing pregnancy or sexually transmitted diseases (STDs) 100% of the times.n Condoms fail to provide protection sometimes from infections spreading from sores on the skin uncovered by a condom, for eg. at the base of the penis or scrotum. But a properly used condom can protect against STDs better than anything else. Some factors to consider in order to ensure the efficacy of condom are: check date of expiry, use latex, keep them away from heat, use water-based condoms, open carefully to avoid tearing, remove holding at the base of penis, choose condom with reservoir tip to hold semen after ejaculation. Consult a doctor if the condom breaks or slips off. Although not 100 % perfect, condoms are the best way of protection if one is going to have sex.

Q How can I help my child avoid and manage stress? and tension headache?

Following measures can help your child to manage stress and tension headache: Identifying and avoiding the known triggers. Taking well balanced diet. Enroll your child in any physical activity like his/her favorite sport. This will help to de-stress. Make sure your child gets good quality 7-9 hours of sleep on regular basis. Try and talk to your child if anything at school or at home is bothering him/her. Lastly ask him/her not to skip medicines prescribed for the headache.

Q how to do anal sex? does it creat any problem?

Anal sex is practiced by many heterosexuals, as well as homosexual couples. The anal area has many erotic nerve endings in both men and women. Because of this, many couples (heterosexual or homosexual) can derive pleasure from some form of bottom stimulation. Anal sex should be avoided by couples in which one of the partners has been diagnosed with an STI until the treatment has proven to be effective. In order to make anal sex safer, the couple must ensure that the anal area is clean and the bowel empty and the partner on whom anal penetration occurs should be able to relax. Regardless of whether anal penetration occurs by using a finger or the penis, the condom is the best barrier method to prevent transmission of STI. Since the rectum can be easily damaged, the use of lubricants is highly recommended even when penetration occurs by using the finger. Especially for beginners, using a condom on the finger is both a protection measure against STI and a lubricant source. Most condoms are lubricated and they allow less painful and easier penetration. Anal stimulation with a sex toy requires similar safety measures to anal penetration with a penis, in this case using a condom on the sex toy in a similar way. It is important that the man washes and cleans his penis after anal intercourse if he intends to penetrate the vagina. Bacteria from the rectum are easily transferred to the vagina, which may cause vaginal infections. When anal-oral cos ntact occurs, protection is required since this is a risky sexual behavior in which illnesses as Hepatitis A or STIs can be easily transmitted, as well as enteric infections. The dental dam or the plastic wrap[citation needed] are effective protection means whenever anilingus is performed. Anal sex has a number of health risks. Anal intercourse is the riskiest form of sexual activity for several reasons, including the following: The anus lacks the natural lubrication the vagina has. Penetration can tear the tissue inside the anus, allowing bacteria and viruses to enter the bloodstream. This can result in the spread of sexually transmitted infections including HIV. Exposure to the human papillomavirus (HPV) may also lead to the development of anal warts and anal cancer. Using lubricants can help some, but doesnt completely prevent tearing. The tissue inside the anus is not as well protected as the skin outside theanus. Our external tissue has layers of dead cells that serve as a protective barrier against infection. The tissue inside the anus does not have this natural protection, which leaves it vulnerable to tearing and the spread of infection. The anus was designed to hold in feces. Repetitive anal sex may lead to weakening of the anal sphincter, making it difficult to hold in feces until you can get to the toilet. The anus is full of bacteria. Even if both partners do not have a sexually-transmitted infection or disease, bacteria normally in the anus can potentially infect the giving partner. Practicing vaginal sex after anal sex can also lead to vaginal and urinary tract infections.

Q Is it advisable to have sex during a period?

A period offers natural contraception while it lasts. If both partners do not mind the mess caused by blood loss, they can go ahead. However, its best to avoid intercourse for the first 2 days of the period because vaginal opening remains open due to blood discharge hence chances of getting infection increases.