Biological analysis device, biological analysis method, and program

A biological analysis method comprising:

• calculating a pulse pressure index related to a pulse pressure of a biological body;
• calculating an average blood pressure index related to an average blood pressure of the biological body;
• and
• calculating a systolic blood pressure and a diastolic blood pressure in accordance with the pulse pressure index and the average blood pressure index,
• wherein at least one of the pulse pressure index and the average blood pressure index is calculated in accordance with a blood flow index which is calculated from an intensity spectrum related to a frequency of light reflected and received from an inside of the biological body through radiation of a laser beam and is related to a blood flow of the biological body.

A program causing a computer to function as:

• a pulse pressure calculation unit that calculates a pulse pressure index related to a pulse pressure of a biological body;
• an average blood pressure calculation unit that calculates an average blood pressure index related to an average blood pressure of the biological body;
• and
• a blood pressure calculation unit that calculates a systolic blood pressure and a diastolic blood pressure in accordance with the pulse pressure index and the average blood pressure index,
• wherein at least one of the pulse pressure index and the average blood pressure index is calculated in accordance with a blood flow index which is calculated from an intensity spectrum related to a frequency of light reflected and received from an inside of the biological body through radiation of a laser beam and is related to a blood flow of the biological body.