Density is defined as how thick or thin you want your hair to be. The standard and most popular choice is 130% which is Medium Density. You can see examples of the density - Click Here.
Google's Gmail Web-based email service runs on the Internet Message Access Protocol system, but it also offers Post Office Protocol mail server access.
Email addresses associated with your account. Your primary email address is the email address with which your Google Account is registered and that you'll use to sign in to Google+. You will also receive email notifications at your primary email address. To change the email address on your account, follow these steps: Sign into your Google account. In the Personal info and privacy section, select Your personal info Email Google account email. Follow the onscreen instructions.