Nicole Telfer

The menstrual cycle is more than just your period—it’s the rhythmic changes of the your reproductive system.

Monthly blood loss through menstruation can cause anemia.

Most antibiotics will not interfere with your hormonal birth control method. Here’s what you need about rifampin, which can make...

While the emergency contraception pill is not a replacement for traditional birth control options, it is probably okay to take...

Sex hormone binding globulin (SHBG) is a protein that helps to keep your hormones in balance.

Progestins are synthetic forms of the body’s naturally-occurring hormone progesterone.

Getting to know our hormones.

Your skin and scalp change in response to hormonal variations occurring throughout your cycle. Some people report more bad hair...

Using a menstrual cup is an easy, safe, environmentally-friendly, and economical way to collect menstrual blood

Our tips on how to prevent STIs

Endometriosis is a chronic inflammatory disease, affecting up to 1 in 10 women, and yet treatment options are limited.

The vagina changes: during sex, throughout the menstrual cycle, and with age and different life stages. There’s no such thing...

The ultimate guide.

It seems that we have been ejaculating for a long time.

Breast traits go beyond just big and small boobs, and everyone’s are different.

Personal lubricant (lube) can be used to help make sexual acts—like sex, masturbation, or sex toy play—more pleasurable.

Different types of condoms and how to use them.

People may enjoy sex more with an internal condom because they feel safe knowing that they are in control of...

You may have noticed changes to your skin—particularly the skin of your face—starting around puberty. Your skin responds to many...

Will having a few drinks throw off my cycle?

Many people who take testosterone as a form of gender affirmation therapy believe it acts as a contraceptive, but this...

Chest binding is a common practice. Binding can reduce gender dysphoria, but it can also cause negative physical health symptoms....

Here’s how to protect your physical and emotional health when you’re getting lucky.

IUDs can have different effects on your period quality and quantity.

The monthly release of an egg from the ovary is a fascinating process.

Practicing meditation can promote both mental and physical changes throughout the body.

How hair evolves during pregnancy and after delivery

Whether you’re undergoing hormone therapy or not, here’s what you need to know about preventing pregnancy.

Synthetic estrogens are used in hormonal birth control, menopause therapy, and more. Here’s how they're made, what you should know...

Stigma surrounding HIV and AIDS directly harms people’s health. Here’s what people are doing to end it.

Genital warts are caused by certain strains of HPV. Two strains of HPV in particular—HPV 6 and HPV 11—are responsible...