Method of monitoring the hydration of a living body

1 . A method for monitoring, by a device, hydration of a living body of a user, the method comprising:

obtaining an individual physiological data of the user;

measuring, via a plurality of physiological measuring sensors of the device, sensor data associated with the living body of the user;

determining, based on the sensor data, an estimated net amount of water intake of the living body of the user and an estimated physical activity level of the living body of the user;

calculating daily water requirements for the living body of the user based on the individual physiological data of the user and the estimated physical activity level of the living body of the user;

comparing the calculated daily water requirements for the living body of the user with the estimated net amount of the water intake of the living body of the user; and

providing, to the user, at least one individual recommendation based on a result of the comparing, the at least one individual recommendation being associated with a recommended amount of water for the user to take,

wherein determining the estimated net amount of the water intake of the living body of the user comprises:

estimating, based on the sensor data, an amount of water intake into the living body of the user and an amount of water loss from the living body of the user; and

calculating the estimated net amount of the water intake of the living body of the user based on the amount of the water intake into the living body of the user and the amount of the water loss from the living body of the user,

wherein the estimated physical activity level includes one of low activity, medium activity, or high activity, and

wherein the providing the at least one individual recommendation comprises:

when a water imbalance for the living body of the user, according to the result of the comparing, is less than first threshold for a particular weight of the user, providing the at least one individual recommendation to the user after receiving from a user interface, a request for the at least one individual recommendation if the physical activity level includes low activity, and providing the at least one individual recommendation to the user before receiving the request if the physical activity level includes high activity.

2 . The method of claim 1 , further comprising:

providing a current state of water balance of the living body of the user associated with the amount of the water intake and the amount of the water loss.

3 . The method of claim 2 , wherein the estimating the amount of the water loss is additionally based on the estimated physical activity level.

4 . The method of claim 1 , further comprising:

receiving, from a user interface, a request for the at least one individual recommendation,

wherein the providing the at least one individual recommendation is in response to the received request.

5 . The method of claim 1 , wherein the determining the estimated physical activity level is based on an ambulatory step count.

6 . The method of claim 1 , wherein the individual physiological data of the user includes at least one of age of the user, gender of the user, height of the user, or the weight of the user.

7 . The method of claim 1 , further comprising:

updating the at least one individual recommendation periodically over time.

8 . The method of claim 1 , wherein the providing the at least one individual recommendation further comprises:

when the water imbalance for the living body of the user, according to the result of the comparing, is both greater than or equal to the first threshold for the particular weight of the user and less than a second threshold for the particular weight of the user, providing the at least one individual recommendation to the user once if the physical activity level includes low activity, and providing the at least one individual recommendation to the user multiple times if the physical activity level includes high activity.

9 . The method of claim 8 , wherein the providing the at least one individual recommendation further comprises:

when the water imbalance for the living body of the user, according to the result of the comparing, is greater than or equal to the second threshold for the particular weight of the user, providing a warning about dehydration of the living body of the user to the user in addition to the at least one individual recommendation.

10 . A device for monitoring hydration of a living body of a user, the device comprising:

a plurality of physiological measuring sensors configured to measure data associated with the living body of the user;

memory storing instructions; and

at least one processor operable coupled to the plurality of the sensors and the memory, wherein the instructions, when executed by the at least one processor, cause the device to:

obtain an individual physiological data of the user;

obtain, from the plurality of physiological measuring sensors, measured sensor data associated with the living body of the user;

determine, based on the sensor data, an estimated net amount of water intake of the living body of the user and an estimated physical activity level of the living body of the user;

calculate daily water requirements for the living body of the user based on the individual physiological data of the user and the estimated physical activity level of the living body of the user;

conduct a comparison to compare the calculated daily water requirements for the living body of the user with the estimated net amount of the water intake of the living body of the user; and

provide, to the user, at least one individual recommendation based on a result of the comparison, the at least one individual recommendation being associated with a recommended amount of water for the user,

wherein to determine the estimated net amount of the water intake of the living body of the user, the instructions, when executed by the at least one processor, cause the device to:

estimate, based on the measured sensor data, an amount of water intake into the living body of the user and an amount of water loss from the living body of the user; and

calculate the estimated net amount of the water intake of the living body of the user based on the amount of the water intake into the living body of the user and the amount of the water loss from the living body of the user,

wherein the estimated physical activity level includes one of low activity, medium activity, or high activity, and

wherein for providing the at least one individual recommendation, the instructions, when executed by the at least one processor, cause the device to:

when a water imbalance for the living body of the user, according to the result of the comparison, is less than first threshold for a particular weight of the user, provide the at least one individual recommendation to the user after receiving from a user interface, a request for the at least one individual recommendation if the physical activity level includes low activity, and provide the at least one individual recommendation to the user before receiving the request if the physical activity level includes high activity.

11 . The device of claim 10 , wherein the instructions, when executed by the at least one processor, cause the device further to:

provide a current state of water balance of the living body of the user associated with the amount of the water intake and the amount of the water loss.

12 . The device of claim 10 , wherein to estimate the amount of the water loss, the instructions, when executed by the at least one processor, cause the device to estimate additionally based on the estimated physical activity level.

13 . The device of claim 10 , wherein the instructions, when executed by the at least one processor, cause the device further to:

receive, from a user interface, a request for the at least one individual recommendation,

wherein the processor being configured to provide the at least one individual recommendation is configured to provide in response to the received request.

14 . The device of claim 10 , wherein to determine the estimated physical activity level, the instructions, when executed by the at least one processor, cause the device to determine based on an ambulatory step count.

15 . The device of claim 10 , wherein the individual physiological data of the user includes at least one of age of the user, gender of the user, height of the user, or the weight of the user.

16 . The device of claim 10 , wherein the instructions, when executed by the at least one processor, cause the device further to:

update the at least one individual recommendation periodically over time.

17 . The device of claim 10 , wherein for providing the at least one individual recommendation, the instructions, when executed by the at least one processor, cause the device further to:

when the water imbalance for the living body of the user, according to the result of the comparison, is both greater than or equal to the first threshold for the particular weight of the user and less than a second threshold for the particular weight of the user, provide the at least one individual recommendation to the user once if the physical activity level includes low activity, and provide the at least one individual recommendation to the user multiple times if the physical activity level includes high activity.

18 . The device of claim 17 , wherein for providing the at least one individual recommendation the instructions, when executed by the at least one processor, cause the device further to:

when the water imbalance for the living body of the user, according to the result of the comparison, is greater than or equal to the second threshold for the particular weight of the user, provide a warning about dehydration of the living body of the user to the user in addition to the at least one individual recommendation.