Nicole Telfer

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

And where is it? A guide.

How to know when it’s happening.

How many eggs do I have? How many sperm are in an ejaculate? And more answers to your questions

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

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

How hair evolves during pregnancy and after delivery

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

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

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

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

Vaginal dryness is common but treatable, and can happen at any age.

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

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

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

Our tips on how to prevent STIs

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

Our research finds that 36% of people experience it.

All the basics on sex, STIs, condoms and more.

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

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

Tracking can help you to know where you are in your menstrual cycle, and when your next period is coming.

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

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

Getting to know our hormones.

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

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

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

What the latest research says about the effects of ovulation, medications, herbal supplements, and BMI on the morning-after pill.

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

Your uterus won’t get “backed up”.

Different types of condoms and how to use them.

Monthly blood loss through menstruation can cause anemia.

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

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

It was once thought to have a high association with developing some forms of cancer. But the latest research has...

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

There might be a connection between your menstrual cycle and your headaches.

Well-planned vegetarianism and veganism can be healthy diets at any stage of life, including pregnancy. Here are a few ways...

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...