One difference is that the amount of vitamin B12 in Centrum Silver (25 mcg) is much lower than the amount used in the positive studies (100 and 500 mcg, respectively). Loss of cognitive function is a well-known effect of vitamin B12 deficiency.
Instructions. Open your web browser on your cell phone. If you have limited access and an Internet directory, look for a Music option. Type the song that you are looking for in the search bar on your web browser. Locate a website in the search results that contains the song download for cellular phones.
Steps; 1. Plug in your iPhone and open iTunes, and then click itunes (top left next to the apple) then perferences make sure tones is selected. 2. Choose the song you want your ringtone to be, right click it and go to get info.3. Go to the options tab, and select your start and stop time (basically choose your favorite bit of the song and then click OK. 4. Right click that same song again, and click create AAC version.his video shows you the simplest way to make a song your ringtone on any iPhone without jailbreaking it and the best thing it's FREE. I am currently using the new iTunes 11.0.2. Works with iPhone 5, iPhone 4s, iPhone 4, iPhone 3GS, iPhone 3G & iPhone 2g.