Howcast - Learn how to do nikyo from the instructors at The New York Aikikai in this Howcast aikido video.

Howcast - Learn how to do katatori from the instructors at The New York Aikikai in this Howcast aikido video.

Howcast - Learn how to do enrosques from tango instructors Diego Blanco and Ana Padron in this Howcast Argentine tango dance video.

Howcast - Learn the Zenpo Kaite, also known as roll forward, from Sensei Oliver Martin in this Howcast ninjutsu video.

Howcast - Learn the Koho Ukemi, also known as the backward breakfall, from Sensei Oliver Martin in this Howcast ninjutsu video.

Howcast - Learn how to do the Gedan Uke, also known as lower level receiving, from Sensei Oliver Martin in this Howcast ninjutsu video.

Howcast - Learn the Zenpo Geri, also known as the forward kick, from Sensei Oliver Martin in this Howcast ninjutsu video.

Howcast - Learn the Yoko Geri, also known as the sideways kick, from Sensei Oliver Martin in this Howcast ninjutsu video.

Howcast - Learn the Jodan Uke, also known as upper level receiving, from Sensei Oliver Martin in this Howcast ninjutsu video.

Howcast - Learn how to do the star, an advanced Pilates Mat exercise, from Core Pilates NYC instructor Sarah Ruback in this Howcast workout video.

Howcast - Learn how to do side bends, an advanced Pilates Mat exercise, from Core Pilates NYC instructor Sarah Ruback in this Howcast workout video.

Howcast - Learn how to do a neck roll, an intermediate Pilates Mat exercise, from Core Pilates NYC instructor Sarah Ruback in this Howcast workout video.

Howcast - For Muslims, Friday’s the big day when believers gather to hear a sermon and participate in ritual prayer. Attendance is religiously mandated for healthy adult Muslim males, encouraged for Muslim women, and usually open to...

Howcast - Learn how to give a deep tissue massage using your knuckles from celebrity massage therapist Meagan Holub in this Howcast video.

Howcast - Learn how to massage the shoulders using deep tissue massage techniques from celebrity massage therapist Meagan Holub in this Howcast video.

Howcast - Learn how to avoid running cramps from competitive runners Doug Oldiges and Stephanie Coburn in this Howcast video.

Howcast - Learn how to do a jump squat with shoulder press in this Howcast workout video about plyometric exercises.

Howcast - Learn how to do a plank tap in this Howcast workout video about plyometric exercises.

Howcast - Learn how to do an ankle lock from an ankle pick leg lock in this Howcast video about lower body submission techniques for jiu jitsu, judo, and mma.

Howcast - Learn how to do an ankle lock from kick catch leg lock in this Howcast video about lower body submission techniques for jiu jitsu, judo, and mma.

Howcast - Learn how to do an ankle lock from side control leg lock in this Howcast video about lower body submission techniques for jiu jitsu, judo, and mma.

Howcast - Learn how to do a knee bar from half guard leg lock in this Howcast video about lower body submission techniques for jiu jitsu, judo, sambo, and mma.

Howcast - Learn how to hold a flamenco guitar and how to position your hands correctly in this beginner guitar lesson video from Howcast.

Howcast - Spending some quality alone time in the sun? Here's how to prevent a painful sunburn when flying solo.