Howcast - Learn the eight telltale signs and symptoms of addiction from Dr. Paul Hokemeyer in this Howcast video.

Howcast - Learn how to do an ssk aka left-leaning decrease in this knitting tutorial from Howcast.

Howcast - Learn how to do a k2tog aka right-leaning decrease in this knitting tutorial from Howcast.

Howcast - Learn what is the next step if the first cycle of in vitro fertilization (IVF) fails from fertility expert Dr. Daniel Stein in this Howcast video.

Howcast - Learn how to treat a low sperm count in this Howcast video about infertility.

Howcast - Learn what you can find out from a sperm analysis in this Howcast video about infertility.

Howcast - Learn how to cope with secondary infertility in this Howcast video.

Howcast - Learn about psychological causes of erectile dysfunction in this Howcast video.

Howcast - Learn about stage 2 testicular cancer in this Howcast video.

Howcast - Learn how to say "Happy Birthday" in Russian with this online Russian language lesson from Howcast.

Howcast - Find out if you need to trim your pet rabbit's teeth in this Howcast video featuring bunny lover Amy Sedaris and rabbit expert Mary E. Cotter.

Howcast - Learn how to recognize the signs that your pet rabbit is sick in this Howcast video featuring bunny lover Amy Sedaris and rabbit expert Mary E. Cotter.

Howcast - Learn how to calculate how much paint you need to buy with this Howcast video featuring Brushed Interiors founder David Sartori.

Howcast - Learn about the best portrait lenses from professional photographer Joe Sinnott in this Howcast photography tutorial.

Howcast - Find out if your rabbit's urine and bowel movements are normal with this Howcast video featuring bunny lover Amy Sedaris and rabbit expert Mary E. Cotter.

Howcast - Find out if rabbits need veterinary care in this Howcast video featuring bunny lover Amy Sedaris and rabbit expert Mary E. Cotter.

Howcast -Learn bathroom plumbing basics in this Howcast plumbing repair video with expert Tim Flynn.

Howcast -Learn how to train a cat to touch your hand from board-certified veterinary behaviorist Dr. E'Lise Christensen, DVM in this Howcast video.

Howcast -Learn how to do the double bridge from magician Michael Patrick in this Howcast card flourish tutorial.

Howcast -Learn how to know if your cat is sick from board-certified veterinary behaviorist Dr. E'Lise Christensen, DVM in this Howcast video.

Howcast -Learn how to keep your cat off counters from board-certified veterinary behaviorist Dr. E'Lise Christensen, DVM in this Howcast video.

Howcast -Learn about the recovery time for breast implant surgery from plastic surgeon Robert J. Morin, M.D. in this Howcast video.

Howcast - Learn about regressive autism from pediatrician and child development expert Asma J. Sadiq, M.D. in this Howcast video.

Howcast -Learn about the autism spectrum from pediatrician and child development expert Asma J. Sadiq, M.D. in this Howcast video.