Not sure why there was money spent on this as it seems quite obvious, but a Mayo Clinic study, the first to scientifically measure the energy spent playing video games, indicated that activity-oriented video games triples the energy expenditure compared to watching TV or playing traditional video games.

Another day, another batch of game trailers was released. Instead of giving them all their own posts, we grouped them, and so far there are trailers for:

• Sonic and the Secret Rings [Wii] - Trailer
• Silent Hunter 4: Wolves of the Pacific - Dev Diary Trailer #3
• Forza Motorsport 2 [X360] - TV Spot
• Tales Of the World : Radiant Mythology [PSP] - Trailer #2
• Vanguard: Saga of Heroes - Companions of Telon Trailer
• 
  
  We will update this throughout the day when new trailers become available. Read more for download links ...

While there has not yet been any official announcement, it seems Atari is working on a sequel to last year's first-ever DBZ game on the PSP, and adding a NDS edition to the mix. Currently scheduled for March 2007, Dragon Ball Z: Shin Budokai Another Road will furhter give players the ability to experience intense WiFi multiplayer battles with the most thrilling aspects of DBZ combat, including counter-attacks, super high-speed bouts, flight and Ki (energy) management.

Equip your alien rider and drop him at the highest peaks of tremendous mountains. Explore a never seen before terrain inspired by Alaska's impressive summits or match online with your friends and players from around the globe. This updated demo fixes some bugs and improves the overall experience.

Control is everything in the world of football management, and this year FIFA Manager 07, aka Total Club Manager 07, provides all the tools you need to make it to the big time. EA has released the first patch, for retail and download, addressing various crashes, bugs and adding tweaks.

Sins of a Solar Empire is a real-time space strategy title under development at Ironclad Games. Unfolding the fate of three unique factions, Sins of a Solar Empire is the first chapter in an epic science fiction saga.

Namco Bandai America announced Naruto: Ultimate Ninja 2, an action fighter features over 30 playable characters, as well as 16 unique stages and the intense head-to-head anime-style fighting fans of the series know and love. Gamers can play through pivotal storylines as well as unlock an original plot in this follow up to last year’s immensely popular Ultimate Ninja.

Rogue Warrior, developed by Zombie Studios, is a story-driven tactical FPS putting you in the boots of a Navy SEAL who leads a team behind enemy lines in North Korea on a covert mission to assess the threat posed by the country's nuclear arsenal.

Dreamlords combines the accessibility of a web game with RPG character development, RTS battles and long term tactical strategy in a never before seen gaming experience. Lockpick Entertainment announced that Dreamlords will open to the public Feb. 15, 2007.

Silverline has released the first patch for Mayhem Studios' fantasy RPG Neverend, bringing your North American retail game to v1.1 and addressing a few bug and crashes as well as some enemy AI issues.